Evolution of Mammals Re-evaluated
AaxelB writes "A study described in the New York Times rethinks mammalian evolution. Specifically, that the mass extinction of the dinosaurs had relatively little impact on mammals and that the steps in mammals' evolution happened well before and long after the dinosaurs' death."
There is no theory of evolution, just a list of animals chuck norris has allowed to live....
Is "your friend" TFA? Because that same goddamn paragraph is in the fucking article!
Most sensible explanation
In other words, chicken tastes like dinosaur!
(In Creationist America and Lysenkoist Russia, dinosaurs taste like chicken!)
I had thought this point was actually a point of disagreement between Gould and Dawkins, with Dawkins pointing out that the cambrian explosion wasn't as sudden as Gould had pointed out. I think this particular point was discussed in Bryson's "A Brief History of Nearly Everything". I didn't think anyone still held this viewpoint about mammalian evolution anymore.
It's not so "cool" having to clean dinosaur droppings off my car, though.
Slow down, cowboy! It has been 4 hours since you last posted. You must wait another few hours.
But can they shoehorn it into the framework of a 6000 year old Earth?
Trolling is a art,
Here's an interesting question: how long did it take for creatures to speciate after the Permian extinction? I wonder if there was the same amount of lag-time after that disaster...
RS
Shoes for Industry. Shoes for the Dead.
Speaking of misleading titles! I got all excited about your post's title, anticipating a link to some Miss Universe-type website. Instead, all I got was a one-sentence comment.
I'll give you the option for divine creation if you give me the option for evolution.
I've known about this since Sunday.
Triv
From Conservapedia:
A CBS survey said there's no evolution! If 87% of people say there's no evolution then this article is a sham sir!
Back on-topic, what interests me is:
If it wasn't the dinosaurs stopping the evolution of mammals (i.e. dinosaurs dominating the habitat), then what did? Could it be that the available habitats were just better suited to dinosaurs vs. mammals? That's the first thing that springs to mind (although am no paleontologist). As ever with this sort of thing, the finding raises more questions than it answers!
I'm going to transform myself into a mighty hawk. Either that or I'll just go and work at Dixons, haven't decided yet.
I thought it was about six million years, could be wrong though.
The big thing was grass, it hadn't been around for most of the time the dinosours had existed. The domination of grasses after the CT event really helped the spread of species
Yeah, sure. This one species of mammals is totally different from all the rest of them.
Not to bait flames here, but the evidence for divine creation is pretty damned weak if you take into account all the imperfect humans that had to be involved in bringing us 'his word'... while the evidence for evolution is getting stronger all the time, and this little theory of evolution doesn't mind a few corrections here and there. It's a bit tolerant of the process of discovery.
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Evolution is a theory of science, not a parlor talk theory. There is no faith in evolution, only vast reams of empirical data supporting it.
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So, you propose that because we are humans, somehow we should ignore the tons (literally) of evolutionary evidence concerning our origins? Nope.
Actually, the ideas contained in the Nature article are based on new, hard evidence, not a "rethinking" of thought experiments. Or didn't you read the linked NYT article? That's how science works.
Some mornings it's hardly worth chewing through the restraints to get out of bed.
If you read The Ancestor's Tale by Richard Dawkins, you'll find that recent genetic evidence suggests that many of the distinct branches of modern mammals predate the K-T extinction.
In particular, by the time of the K-T extinction, I believe that the primate lineage had already separated from rodents, as well as the laurasiatheres (all hoofed mammals, lions, tigers, bears, etc.), xenarthrans (armadillos, sloths, etc.), and afrotheres (elephants, manatees, anteaters, etc.).
So, while most mammals in the Cretaceous may still have been tiny shrew-like creatures scurrying around in the underbrush, many of the modern lineages had already come into separate existence.
It is also interesting to read, in the book, that our nearest non-primate relatives aside from the tree shrews are rodents. I can sort of see it: give a mouse a little more finger dexterity and it wouldn't not that different from a lemur. It also might explain why rodents are such good laboratory specimens.
Sounds more like religion to me.
Whether or not there is some sort of god, I'm not supposed to say/god is a word and the argument ends there-Smog
Specifically, that the mass extinction of the dinosaurs had relatively little impact on mammals and that the steps in mammals' evolution happened well before and long after the dinosaurs' death.
Do they think that those steps ever could have taken place if the dinosaurs were still around?
Technoli
Did you go with Geico?
Nerd rage is the funniest rage.
You must be a moderate, level-headed conservative, because that website is NOT satire.
Don't lead me into temptation... I can find it myself.
...because you could get a caveman to do it!
I am definitely outside of my field of study here, and not really sure if my question is quite on topic but here goes:
The fuse thing bothers me. It leaves the impression that mammals were going to burst into proliferation at some point no matter what. Like there was a guaranteed start to that. I still think it was an accident by natures "need to survive". I can't think of another species which would be a better candidate however but that is not helped by my lack of understanding in the field.
To me it seems more likely that a freak accident (or "natural accident") may have activated a specific genetic sequence or mutated some aspect of mammals which increased their survivability rate. This just seems like evolution at it's best.
My assumptions about mammals and what has made us more adaptable than some other species:
We are warm blooded - Much larger geographic areas are available to us and we are a much "hardier" species for extreme weather.
We have hair - Goes along with being warm blooded and the geography thing mentioned above.
We nurse our young - Our young are not fully developed before birth, to me this signals that we have exceeded some "original" amount of time anticipated by nature that it should take to give our young rudimentary skills. Remember some species are born with everything they need to know for life already in their programming. Learning and experience mean more to many species of mammals than just wrought memorization like you frequently see with reptiles, amphibians, fish, insects, etc. By virtue of how "we" do things as mammals we give our young much more time to learn, adapt, and become "ready" for the world.
We are omnivorous - Mammals as a whole are generally omnivorous, though in the context of millions of years ago I would venture to assume that much of this is by adaptation anyhow. In any case this drastically expands our food selections as most (all?) mammals are not limited to eating one food group or even a very narrow selection of foods.
Maybe another disease died out, or maybe this is where we started developing a better immune system. It's hard to tell when our internal workings developed from so long ago just because of a serious lack of soft tissues. Maybe our eyesight just took a while to improve from being nocturnal for so long? Maybe the Dinosaurs were the primary reason for mammals to be nocturnal, and once the large ones were gone it took a while for evolution to "switch back"
Now I am just rambling, but maybe someone with a clearer understanding of such things would be so kind as to disprove or converse about some of my ramblings.
I'm calling you on this rediculous statement. Science is only as sure as they can prove. You'll hardly find a scientist who, under new evidence or studies, will say "nope, the way we used to believe is more correct, and i'll be damned if i take your new evidence into consideration!"
Sounds more like religion to me.
You two should stop fighting and realize that it was actually the flying spaghetti monster that created it all!
The original generic sig.
And then there is the subject of this article: which is not the whys and wherefores, but the histories of evolution. They are not reevaluating the means of evolution, just the details of the timetables of when things happened. Much like a police officer looking at a crime scene and sorting out what happened when, discovering a new piece of evidence or talking to a new witness and adjusting the description to fit the facts.
Boobies never hurt anyone. - Sherry Glaser.
Whats worse is that some of those surveyed might not be in Alabama...
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I've been partial to this alternative theory of Intelligent Design. http://www.venganza.org/about/open-letter/
Satire? Don't be so sure. There are plenty of people who believe things exactly the way a place like Conservapedia has written them. As a matter of fact, look at their article on Evolution [http://www.conservapedia.com/Evolution] -- nowhere do you see any mention of carbon-based dating or radioactive dating of any sort. A satirical site would've tried to make at least a passing funny reference to radioactive dating, don't you think?
It is by my will alone my thoughts acquire motion; it is by the juice of the coffee bean that the thoughts acquire speed
I should add that these fossil discoveries lead to various people taking a more serious look at the presumed facts of mammal evolution and were the catalyst for a "rethink", however there is even more "hard evidence" in the paper cited by the NYT article which was a far more detailed study looking at far more fossil (and apparently molecular) evidence.
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Nope. It's not satire. It was created by Andrew Schlafly, son of arch-conservative anti-femininst Phillys Schlafly, and is used by her Eagle Forum.
If the ideas presented on that site induce laughter, it is because neoconservative ideas are completely ridiculous. Really, Mark Twain couldn't produce satire so deep. I honestly hope that the GOP uses that site as their definitive reference. Within two generations, they'll be too stupid to breed.
That's pre 7-11 thinking....
Re-Thinking? Well, hell if you knew it wasn't right, why didn't you say so before?
Jeez.
See, this is why Creationism is right...No rethinking required. Ever.
ad logicam Claiming a proposition is false because it was presented as the conclusion of a fallacious argument.
Please don't do this, at the very least, to me.
What, you ask? Why, explain the joke I made so as to completely suck any humor out of it.
Nerd rage is the funniest rage.
alas putting the argument initially in such a confrontational way doesn't help.
You need to get them to really debate. Most won't, and spout the same stuff over and over.
Thing is, two centuries ago everyone was a creationist, we would have been as well, there was no alternative. They are however fighting a losing battle if you look at the numbers. It will likely be another century before creationism is dead, and then only maybe.
By reading NYT articles? Is that where you get all your scientific facts?
No, but it was linked in the main article and gave a reasonably accurate synopsis of the Nature article. Nature has an abstract of the article on their website, but you must be a paying subscriber to read the full article online, which few /.ers are, I assume. You can read the full text at any university library and at many public libraries. Which of these do you plan to do to confirm your original statement?
Some mornings it's hardly worth chewing through the restraints to get out of bed.
Evolution:
1 + 2 + x + y + 5 = 15
Creationism:
x^2 + 1 = 0
"Rodents Of Unusual Size? I don't think they exist." http://www.imdb.com/title/tt0093779/quotes
A magic man done it! With "forcey forces" of coursey.
Conservapedia is self-parody, but it is produced and maintained by "Conservatives" as a repository of official "Conservative" dogma. Because they think Wikipedia is "liberal", as they clearly state in their About page. Typically Conservative, they're using the Wikipedia software for free, but don't even mutter a minimal thanks to Wikipedia - they just bash it.
Anonymous Conservative Coward is a typical Conservative: trying to have it both ways, all ways, whenever it's convenient. There is no "truth" for today's "Conservatives" (What are they "conserving"? They're wasters, reckless consumers and rampant destroyers.) So whenever they dart out from behind their favorite weasel words to make a clear statement, they're usually a joke, at least because they contradict whatever other statement they made before that was once convenient then.
"Reality has a well-known liberal bias." - Stephen Colbert
--
make install -not war
They're just scruffy house-dwellers with poor hygiene. So they're like one step up from hippies.
What kind of marketing genius dreams up an entire campaign involving alleged cave-people who don't exhibit the only qualifying criterion for that status that exists? i.e. living in a cave.
Can you be Even More Awesome?!
....because you could get a caveman to do it!
If you watched that show on the Discovery channel I believe it was the episode of 'Mammals vs Dinosaurs'. They showed how vegetation played a big role in the mammals survival and how dinosaurs when young were not able to hide in the vegetation from larger creatures because the mammals were the dominate species in that level of vegetation.
Something along the lines of that....
So the mammals killed off the dinosaurs at a young age.
I'm neither a evolutionary biologist nor a paleontologist, but hopefully one of the people reading this is (or at least claims to be on Wikipedia) and can answer a question for me:
I was always under the impression that the reason it was presumed small rodents were the only ones to exist with the dinosaurs is because if they were any larger, they would've been wiped out by the K-T extinction event. If there were large mammals that existed with the dinosaurs, and if they were in the same distinct groups that exist today as another poster said, then do we need to go back and question the importance of the K-T event? Especially since dinosaurs didn't so much go extinct as they evolved into birds, maybe having a ginormous hunk of space rock crash into the planet isn't as cataclysmic as we have been assuming all this time (for the planet as a whole, that is, it would certainly do a number on your neighborhood).
Any experts out there who can quash my thinking and point out the flaw in this line of inquiry?
God invented whiskey so the Irish would not rule the world.
I don't have a tv, although I do watch other peoples from time to time.
I have heard of the vegetation thing, but it was other flora, not grasses, so far as I understand, ferns or somesuch.
While I am a programmer at heart I supposed, I do have a strong interest in biology (amongst other things). I just wanted to add to any geeks out there who have any interest at all in biology, read this book. I found it to be excellent on many levels. I am not here to do a book review, just wanted to say it comes highly recommened from someone *not* in the field. Also, if your in OC (SoCal), I think I saw a flyer that he gave a speech down in Laguna Beach a few months ago. Not sure if he is normally in the area or not.
>It also might explain why rodents are such good laboratory specimens. :-P
See, you're actually assuming that they are good models, whereas it's not clear that they are.
Indeed, regardless of how good a model they are, they are rather used because of their size,
cost and fewer objections by laity. People want to save the cute bunnies (actually lagomorphs,
close cousins of the rodents), but most don't care about the white mice in the cage next to it.
And some people object to being compared to monkeys, apes or pigs
Were that I say, pancakes?
The researchers believe that various species of grass had spread before India became geographically isolated from other continents about 125 million years ago.
With the CT event at 65.5MYA, grasses may have already been around for a while.
i
Duh...
Oh yes, they were around, but only as a relatively minor plant. They became dominant after the CT event.
I'm no expert, but it would appear that the surprise is, in fact, that some of these larger specimens actually survived. It's been known for some time that primates diverged about 69 million years ago, for example, and it seems that more orders are being added to the list.
I am a science fantasy fan
It wasn't clear from the article, but I assumed that the large existing mammals and birds died off as well. What the article stated was the the lineages already had split. So there was a proto-primate and other proto groups. The actually surviving species may have been quite small though.
Jack Valenti and Orrin Hatch will be first up against the wall when the revolution comes.
My problem is understanding why the creationists are so obsessed with evolution being wrong. After all, Heliocentrism vs. Geocentrism has all the same merits (i.e. we can see the sun goes round the earth, proving the opposite to the layman is difficult, Heliocentrism is a theory, literal interpretation of the bible says the arth is the centre of the solar system), biut doesn't cause nearly as much debate.
Evolution:
x + 2 + 3 + 5 + 7 + y + 13 = 42
Creationism:
x^2 + 43 = 42
See, you're actually assuming that they are good models, whereas it's not clear that they are.
Yes, that's true.
It may well be that any old mammal would do, and mice are merely good because they are small (and for breeding purposes, they have a very short generational cycle and large litters).
I suppose what I was trying to suggest was that mice may be particularly good to compare for specific genetic reasons beyond the obvious ones I just mentioned. Though any argument about our particular closeness to mice could be made about any other rodent or lagomorph just as easily: mice are just as close to us as the cute bunnies are, and as the R.O.U.s would be if they existed.
How dare you defy the wise words of the Flying Spaghetti Monster? Arrr!
09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C1 bottles of beer on the wall. Take one down, pass it round... Oh, umm...
Faith in evolution? Faith? Quoth Dan Barker:
:)
"Truth does not demand belief. Scientists do not join hands every Sunday, singing, "Yes, gravity is real! I will have faith! I will be strong! I believe in my heart that what goes up, up, up must come down, down. down. Amen!" If they did, we would think they were pretty insecure about it."
This story demonstrates the strength of science and the evolution theory. Science is obligated to examine and correct itself based on evidence and this evidence doesn't shake evolution one bit.
:-)
And creationism demands blind faith to discount fact, history, and science. Who is to say that the creationists are wrong, because by their definition you cannot argue with them
/\/\icro/\/\uncher
....I'll give you the option for divine creation if you give me the option for evolution.......
The constitution guarantees that you can believe either one or anything else you want. The government is not supposed to prefer one religion above another. However, the evolutionary religion has managed to sell itself as science and illegally gets billions of dollars of tax money. Maybe it is time the ACLU sued the government for supporting religion.
All theory is gray
There's faith in the idea that what we observe is representative of what happened before recorded history. There's faith that empiricism is generally valid (watch how many people leap to defend empiricism and tell me that that's not faith). There's faith that the vast majority of collected data hasn't been tampered with. There's faith that, on the whole, scientists are conscientious about their work, and do not seek to deceive. There is even faith that no one is holding a gun to the heads of everyone who has ever worked in the field to gather data, and telling them to lie.
I happen to share all of this faith, as I think it's a fair set of assumptions on which to base one's faith (as opposed to invisible men in the sky, to paraphrase George Carlin). That doesn't mean that it's anything other than faith, however. Fundamentally, all of this can be boiled down to a faith in Occam's Razor, a principle which was the straw that broke the camel's back in terms of convincing the budding, and as yet unnamed scientific movement that the Church wasn't necessarily wrong (they didn't go that far for another 50-100 years), but that they were not the only authority on which to base the evaluation of truth. Occam's Razor leads directly to the explosion of thought surrounding empiricism in the Renaissance, and ultimately to what we call science, today. That we rely on this grounding in pre-Renaissance thought to this day is an often-explored and frequently questioned element of faith in the process that we call the scientific method.
As for the vast reams of facts supporting evolution... there are vast reams of fact supporting a lot of crazy ideas. What's interesting about evolution is that those facts corroborate each other in intricate ways that would be very difficult to unravel as a whole. Certain facts may turn out to support conclusions which they did not originally seem to point to, but the whole has many more inter-related facts on which to stand.
Evolution is not a religion; you receive a 0/10 on this quiz. Neither, incidentally, is the theory of natural selection, but you get 5 bonus points if you can explain the difference between the two.
(C) Kaki Sain, 2011. By reading this, you have illegally copied my property to your brain.
[Specifically, that the mass extinction of the dinosaurs had relatively little impact on mammals and that the steps in mammals' evolution happened well before and long after the dinosaurs' death.] Do they think that those steps ever could have taken place if the dinosaurs were still around?
Even if there was mammalian diversity *before* the meteor event (dino extinction), that does not necessarily mean the mammals were large. Having lots of species and having big species is not necessarily the same thing. Thus, even though there may have been lots of mammals before the meteor, they still might have been small. The relatives of elephants etc. may have been small, for example. Cute little cat-sized elephants (well, maybe they looked a lot different back then).
Thus the view that the death of dinos made way for *large* mammals still seems to be accurate, or at least not refuted. I don't know of any large mammal fossils found before the meteor event.
Table-ized A.I.
It all boils down to faith, indeed. Because without it, we would each be forced as individuals to verify and review all of science, and if we had to do that before we could accept it, we'd still be breaking flint into flakes to attach to the end of sticks and hoping it doesn't rain today.
The choice in who to place your faith in is similarly simple. Do I trust millions, consisting of my peers, colleagues, friends, and family with a modern viewpoint and the benefit of education? Or do I trust what by today's standards are a handful of illiterate and superstitious people whose very existence can't even be known for certain, based on books whose original copies have long since been destroyed?
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As a firm Turdist, what do I get when I tell you the difference between evolution and natural selection?
Like what I said? You might like my music
That's because there isn't a difference. When you say "theory", the scientific term that most matches it is "hypothesis". "Scientific theory" means "fact". At least, as far as translating technical scientific jargon into vernacular is concerned, that's how it is.
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Would you eat them poached or fried? Would you eat them crucified?
Dogs and cats had a common ancestor. One did not evolve from the other, so there would not be an intermediary. But why am I even bothering with you? You're intellectually lost.
Acutally, I don't observe Tuesday, which causes no end of trouble when I try to plan meetings in Outlook.
Um, that's what happens already. Textbooks aren't written just once; they're revised often. Biology textbooks started talking about comet destroyed the dinosaurs theory when I was in high school. Ditto the Big Bang.
Students shouldn't just be taught scientific theories. They should learn the scientific method. hearing that the theory of evolution is, uh, evolving should be no more surprising than hearing that last year's cancer scare is actually good for you. (That great bugaboo coffee is now believed to prevent liver cancer.)
Let's take this one step at a time and keep it general.
You accept that small but significant changes can occur in a species over time. Good.
Question, did Zebras exist 70 million years ago? Did Tyrannosaurus Rex exist 350 million years ago? Did multicellular life exist 1 billion years ago?
The real physical evidence suggests the answer to all these questions is no.
So where did all the different animals that exist now come from? How did we go from single celled creatures long ago to the Blue Whale now? Why were there no Blue Whales a billion years ago?
The answers are commonly a) 'God did it' or b) Some natural mechanism has promoted increased complexity in life over time aka Evolution.
For me b) seem the simpler and more useful answer. As far as I'm concerned I can see *no* valid reason to dispute that Evolution *has* happened. The how and other exact details of the process are open for discussion perhaps, but even here there is plenty of general consensus.
Whichever way you look at it, it's true. I'm not.
I have recently examined the Marzeah Papyrus (7th century B.C.), fragments of the dead sea scrolls, septuagint leviticus , septuagint exodus and Gospel of John fragments all from the 3rd century A.D. Modern, nonparaphrased, versions of the Bible, corresponding to these fragments are accurately translated.
Many of the original writers and earliest translators could write and speak multiple languages. While you might consider them superstitious they weren't illiterate. William Tyndale, a 16th century scholar and translator was fluent in eight languages. His work influenced Shakespear and the King James version of the Bible.
Tyndale was strangled and burned at the stake because a version of the Bible that could be read by all, transferred power from the King and the Pope to the church, which Tyndale translated as congregation or congress (people) rather than church (hierarchy). Many credit Tyndale and his translation for furthering the concepts of representative democracy, individual responsibility, and equality.
I think the point was that the ORIGINAL texts (of which the, admitedly ancient text you refer to are mere copies) are lost to history. We'll never know if they're quite the same as what we're looking at, and certainly the Catholic church had a couple of rounds of eliminating books that they considered to be non-canon ... and when I say eliminating, I mean hunting down every copy and burning them.
As for the literacy thing... you're correct insofar as the new testament goes, but the OT is another matter. Many of the stories told therin are believed to be word-of-mouth tales that were told through generations before being committed to the written word, and there's no evidence that the original tellers read or wrote any language.
Sure, there were brilliant Christians, Jews, Hindus, Muslims, Buddhists and members of many other faiths. That's not really the point. The people who created those religions and told us that invisible men in the sky were talking to them all died many, many generations ago (even Smith, the founder of Mormanism is long since dead, and that's a RECENT religion). We have no reason to believe that these people could forsee the social issues present hundreds or thousands of years later, nor that they understood the world around them well enough to craft a book that would speak to issues which would take other men millenia to figure out. Only if we appeal to the existance of invisible men in the sky can we believe that these books would continue to maintain any relevance other than historical.
If non creationists were wrong, it would be that there was another scientific reason for evolution, or, as with what happened with Newtons work in Einstein's time, it could turn out that evolution/natural selection alone are woefully inadequate explanations.
We would absorb the new information, reprint our textbooks and move on, no worries.
If a creationist is proved wrong then the very basis of their personal world view or power base (if they are considered to have authority due to their assertion of their views) is removed. Everything they believe would have to be questioned, and new things, like proof based learning would have to be adopted for them to survive. That's a tall order, and too much for many to cope with, so they are fighting it.
There's mathematics and physics around geocentrism. Math cannot be disproven and physics is much harder to argue against (like the pinciples of centripetal force, momentum, and gravity for example). For example, how does one account for the seasons and the position of the sun in the sky during those seasons in a heliocentric model? One cannot. If the world is spherical or near spherical, the sun cannot revolve around the earth in the way a spring might (because the period of one "solar revolution" doesn't change with the seasons) AND reverse directions every winter/summer without an external force constantly acting upon it.
Besides, there's no contest to the moon revolving around the earth, and the sun's path is definitely different from the moon's. If the sun also revolved around the earth and the above was possible, wouldn't the moon exhibit the same or a similar orbit?
"If a nation expects to be ignorant and free in a state of civilization, it expects what never was and never will be."
http://www.icr.org/article/3191/ Several years back, this writer attended the International Conference on Dinosaur/Bird Evolution. One afternoon, a number of us took a field trip led by a recognized "expert." He asked us if the field in which we were standing could have been a dinosaur-age environment. Several said no, because there was grass present. Evolutionists maintain that grasses were not present during the age of dinosaurs -- In my review |i.e., Eschberger, ed.| of Disney's new movie "Dinosaur," I mentioned that one of the few scientific inacurracies |sic| that I found in the movie was the presence of grasses in the dinosaur nesting grounds.3 However, in a 2005 report we read, "Plant-eating dinosaurs munched on grass, say scientists who had thought the plants emerged after the beasts died off."4 Students were taught that the only mammals during the "age of dinosaurs" were small, and barely able to stay alive among the terrible thunder lizards. Evolution theory said that the mammals were nothing more than "shrew-like insectivores that hunted at night." That radically changed with the recent discovery of large, dinosaur-hunting mammals!5
The only 'evolutionist agenda' is a subset of the scientific agenda: to promote the understanding of how the universe works, and to investigate the universe to widen our understanding.
The only thing that causes evolutionary theory to stand out as a pariah is that it interferes with the credibility of religion. So it becomes an 'agenda', rather than a subset of biological science to those who are offended by the offense to their imaginary friend.
Can't deal with reality? Sorry, that's not my problem. Want to espouse your unsupported view? As with any semi-academic forum, you'd better be prepared for a debate - and as with any internet-based forum, you'd better be prepared for flaming.
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"A man's religion is to be respected about as far as is his belief that his wife is pretty and that his children are smart."
- Richard Dawkins (?)
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"Nobody has EVER made a fossil. NO fossils are being made anywhere today, especially by any slow, gradual process, sometimes imagined by evolutionists."
Two words: Snow Mummies.
"To prevent this, a dead body needs to be put in an environment that prevents all microorganisms from feeding on the remains and oxygen must be excluded."
Hm. Like drowning in tar?
"A sudden disastrous upheaval such as the Biblical flood could certainly account for fossils."
Yes. Because there are no waterborne microorganisms.
Read as "Naturally occuring semi-modern fossils"
"The unwarranted assumption (faith) is that such radioactive decay rates have never varied over the vast periods of time evolutionists need in order to make their assertions seem plausible."
In order for radioactive decay rates to change, there would need to be some fundamental changes in a number of unary (ie: they equal 1) quantum constants. These constants only exist to translate from conventional units of measurement into quantum units. I would submit that you need to show evidence to suggest that any QED constant has drifted by any small percent over the time we've known about them.
Seriously. Is it that you're trolling on purpose, or are you actually someone who is *just* educated enough to sound this stupid?
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Confucius say, "Find worm in apple - bad. Find half a worm - worse."
Unfortunately, Conservapedia was started by a group of fundie literalists in New Jersey to correct what they felt were 'glaring errors' and a 'liberal agenda' in Wikipedia.
In other words, yes, there really are people that stupid.
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Summary:
Evolution, the historical record of species evolution on earth is being rethought, as there is new evidence to refine our understanding of it, and is as yet theoretical.
Evolution, the process of speciation (the forking off of species) and adaptation through natural selection, is quite firmly proven.
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You have Creationist/ID friends, Sad, You should get out more.
"The recurring seven day time period (we have come to call one week) occurs ONLY in the account of creation, and no where else, "
Really? So it doesn't occur in ancient hindu and chinese texts then? Hmm , someone better tell them their history books are wrong!
Incidentaly , you ever considered that 7 days is exactly 1 quarter of a lunar cycle? No? Well theres a susprise. You go back to reading your simpletons guide to the universe.
Confucius say, "Find worm in apple - bad. Find half a worm - worse."
Thanks. Now make a note in your diary so that when it gets to December, you don't forget to inform us all that reindeer can't actually fly.
Only three things are certain; death, taxes, and apocryphal quotations - Ben Franklin.
Can it be because there is more selection pressure due to the dinosaurs?
If there is more selection pressure, more the chance of diverging to new species.
And when dinosaurs died out, the mammals had a field day.
rajmohan_h@yahoo.com
Paint with a broad brush much? Its easy to generalize either side, because it is usually the ones furtherest from center that have the biggest mouths. More centrist liberals would probably realize such.
If it is just a theory
There's your problem right there - no, creationism isn't a theory.
There is still room for other ideas
If by "room for other ideas" you mean that there's science, and then made up stories, then sure.
Evolutionary is just a theory, not a law, so it is okay to have these revisions.
Laws can be revised too, or known to only be an approximation (e.g., gas laws). In science, contrary to what is commonly assumed, "law" does not mean "proven to be certainly true", a law is a simple expression representing some observed relationship. A theory is something different, and much wider in scope - it's a model which explains how things work.
There's faith in the idea that what we observe is representative of what happened before recorded history. There's faith that empiricism is generally valid (watch how many people leap to defend empiricism and tell me that that's not faith). There's faith that the vast majority of collected data hasn't been tampered with. There's faith that, on the whole, scientists are conscientious about their work, and do not seek to deceive. There is even faith that no one is holding a gun to the heads of everyone who has ever worked in the field to gather data, and telling them to lie.
The problem is that we are conflating different meanings of "faith". Yes, we can't ever know anything with 100% certainity, but we do have large amounts evidence supporting such beliefs. I presume this is what the grandparent post meant.
OTOH, "faith" in the creationist or religious sense can mean believing something even without any evidence, and this is presumably what the parent you replied to meant.
Trying to suggest that these are both "faith", and therefore that believing in something with strong evidence is no different to believing a made up story with no evidence, is a common creationist tactic, but they are hardly comparable.
But NBC says wikipedia can't be trusted! Now I know I have to watch TV if I want to know things.
Please stop stalking me, bro.
I didn't say they are. But I'm sorry, Creationism is an idiotic belief.
What I don't like is when people have this "God trumps all" attitude; when people take the word of a 2000-year-old book (that, incidentally, has been heavily edited over the years for various agendas) over a body of persuasive scientific evidence in forming their opinions on scientific matters.
If you want to believe in religion to tell you how to live, answer philosophical questions, or give you comfort when you ponder the end of your natural earthly life, go for it. I have all the respect in the world for your beliefs, and will vehemently defend your right to have them and practice them. But when you want to propagate that religion by mucking with kids' science classes, tossing aside the science of it and teaching "theories" that aren't theories because they have absolutely no basis in tests or observation, we're going to have a bit of a problem. There's a huge difference between making your own kids stupid and using the power of government to make everyone's kids stupid.
Yeah, except that the essence of science is that it is aimed at disproving a model, not at proving anything. It is only really in maths that you can logically 'prove' anything to be true.
What you do in the real world is:
(1) make observations
(2) propose a model that explains the observations
(3) make predictions based on the model
(4) make further observations, to test predictions, until model breaks
(5) repeat from (1)
What happens is that the models get better and better, so that the time spent at (4) tends to increase the longer people work at it, but since all our models are imperfect approximations of reality, they will all eventually need some kind of revision.
This is why science is uncertain: by definition, almost any hypothesis advanced is expected to be slightly wrong.
Chuck
- These are small, *those* are _far away_
You're absolutely right. Conservapedia appears to be run by theocratic paleo-conservatives who think that science is a tool of the devil, not neoconservatives who think that democracy can be spread at gunpoint. My mistake.
That's pre 7-11 thinking....
Sure like:
Deuteronomy
"As you approach a town to attack it, first offer its people terms for peace. If they accept your terms and open the gates to you, then all the people inside will serve you in forced labor. But if they refuse to make peace and prepare to fight, you must attack the town. When the LORD your God hands it over to you, kill every man in the town. But you may keep for yourselves all the women, children, livestock, and other plunder. You may enjoy the spoils of your enemies that the LORD your God has given you."
In this neat little passage we have slavery, genocide and rape by command of the god of the OT.
Here is something to describes the character of the god of the OT...
Exodus
"The LORD is a man of war: the LORD is his name."
And here is some more OT god mercy and graciousness and long-suffering. Obviously the love and mercy did not apply to young virgin children girls.
Numbers
"They warred against Midian, as YAHWEH commanded Moses, and killed every male. They killed the kings of Midian with the rest of their slain
Now here we have clearly child rape. Keeping in mind that the Midians were pure evil (the standard apologetic response to the above passage) just how young do think these virgin children were? Does not your OT gods grace apply to them?
Is that why whenever the "spirit of the lord" moves within Sampson he goes out to kill people. Yup the love of people just is quite clear in the above passages.
In my experience biblical illiteracy is widespread among bible believers.
No it did not! The flood is a not only a myth but a borrowed myth. Check the story of Gilgamesh, of which sources predate any OT sources. Try to read something other than Christian Apologetics.
Further the proof the flood does not exists is clearly and abundantly obvious in Geology. Get out into the field take a book or surface geological map and look around and will encounter geological formations that deny the flood.
"survival of the fittest" is a rather bad metaphor for evolution, which has caused many laymen to think that evolution has to do with survival. Survival is not a demand on evolution, and often the opposite is true. The only demand is the ability to breed offspring that in turn breeds more offspring.
The only demand placed on survival is that the organism has to survive until it can produce offspring. After an organism has reproduced its only evolutionary value is its ability to improve its offsprings ability to reproduce. This can include taking care of the offspring, getting eaten by the offspring (or mate carrying the offspring) or just leaving the the offspring alone and trying to reproduce again elsewhere.
Assume we have two peacocks, one beautiful and one less beautiful but more apt at surviving. If the beautiful peacock has a 10% greater chance of getting a mate, while the less beautiful peacock has a 5% greater chance to survive until it is time to get a mate, the genes of the beautiful peacock will win over time. Of course, if the environment changes so that the less beautiful peacock gets more advantage out if its survival abilities (maybe an introduction of a new predator), it may begin to gain ground instead.
.....Question, did Zebras exist 70 million years ago? Did Tyrannosaurus Rex exist 350 million years ago? Did multicellular life exist 1 billion years ago?........
Did automobiles, airplanes, computers etc. exist 150 years ago? If not, where did they come from? Did they come about by unplanned natural processes not involving intelligent minds?
On the molecular and atomic levels, a single cell is far more complex than a Boeing 747. Nobody would suggest that such an airliner came into existence without effort of mind. Why should life then have come without processes of thought and planning?
The millions and billions of years evolutionists always conjecture about are also based on assumptions (faith) that the time measurements as well as time itself have always proceeded at the present rate. There is evidence that the fundamental constants upon which these clocks are based have not been anywhere near constant. Einstein has shown that time itself is not an absolute thing.
All theory is gray
.....Dogs and cats had a common ancestor.....
Really? Has anyone actually found hard evidence of such an ancestor? Has anyone found even a fossil that has part characteristics of both? All Airplanes have wings and therefore they had a common ancestor; some kind of bird? Cars and oxcarts have wheels and therefore they also have a common ancestor, namely a log rolling down a hill? Maybe these man made things have common design features, based on the underlying laws of physics as discerned by intelligent human minds? Is it then not plausible that the same principles apply to the natural living things as to our man made and designed creations?
All theory is gray
Moderate followers are the worst because they are a much larger group and give credability to the extreme fundamentalists. That comment doesn't only apply to religion, but to all parts of life. Group psychology is dependent on the support (or more accuratly lack of resistance) of the silent majority.
As for insults, I insult people who pray to mass murdererers and torturers. The biggest targets being the Christians and Muslims who pray to someone who according to their beliefs annually condemns tens of millions of people to an eternity of torture. I also insult religions and religious leaders who control and subvert people. Finally I insult people who indoctrinate children with beliefs about imaginary beings (and that includes Santa Claus as well as gods). Such indoctrination is very near child abuse.
Basically, if you happen to be someone who believes in a neutral deity that isn't used to scare people, promote warfare, scam money or enforce morals and you don't indoctrinate your children with your beliefs, I will not insult you.
I may even be able to ignore the promote warfare and scam money part, because it isn't only religions that do that. I will however never ever tolerate religions that use fear to indoctrinate young children. Such religions, and the people who follow them will always be the target of my insults.
As for the subject at hand. The reason scientists laugh and insult Intelligent Design is because it presents arguments against evolution that aren't valid. They talk about irreducable complexity while using examples that are clearly reducable. They talk about missing links when we already know that fossalization is very rare. When they are cornered, they ask how the first reproducing being was created, failing to realize that that subject is outside the scope of both evolution and ID.
......in order for radioactive decay rates to change, there would need to be some fundamental changes....
One of the "constants" is h Planck's constant that governs a number of atomic quantum processes, including radioactivity. It is inversely related to the speed of light c.
Astronomers measure something called the "red shift". The red shift itself is a measured fact. It's cause is commonly thought to be the doppler effect. This explanations however requires all sorts of convoluted constructs, such as dark matter and energy, which have NOT been observed. If this red shift is caused by the drift in the speed of light, then such conjectures fall away. There is NO known law of physics that requires that the speed of light be invariant. We KNOW that light can be speeded up and slowed down by the media it traverses. All age dating must be corrected for the drift of these constants. The red shift evidence points to the fact that this change has been about a factor of 300 million. This drift is however highly nonlinear over time.
All theory is gray
"One of the 'constants' is h - Planck's constant - that governs a number of atomic quantum processes, including radioactivity. It is inversely related to the speed of light c."
Not quite. It's inversely proportional to the speed of light in a perfect vacuum, c. In perfect terminology, this is the linear photonic propagation velocity in a medium without physical impedent. And this doesn't change for the medium, and nor does c (again, the speed of light in perfect vacuum).
Besides, if we're talking about quantum processes and radioactivity, you're missing the strong force, the weak force, and electromagnetism (which all play a part in governing radioactivity, as well as every other function an atom performs). Are you going to tell me they drift too?
Do you know what would happen if, say, the strong force got just a percent stronger? The planet would collapse in on itself. And just a percent weaker, and atoms wouldn't hold together. The planet would dissolve into a dusty patch of vacuum.
The various quantum and cosmological constants are just a means of taking our existing arbitrary measurements and fitting QED in. Nothing more, nothing less. I mean, I could state my height in planck lengths, or even molar planck lengths, but no one would get it.
"Astronomers measure something called the "red shift". The red shift itself is a measured fact. It's cause is commonly thought to be the Doppler effect. This explanations however requires all sorts of convoluted constructs, such as dark matter and energy, which have NOT been observed."
Uh. Red shift has nothing to do with dark matter. It has to do with the speed of light (propagatory) being a constant as the source of the light falls away; the waves, then, become farther apart, as the distance from the source to your eyes is farther. They 'stretch', to use a partially inaccurate metaphor.
Where the dark matter you mention comes in is as a way to explain the cause of relatively uniform red shift coming in from all directions. Dark matter is not an actual explanation, you know, and nor is it supposed to be some special esoteric type of matter. It's matter that's - get this - too dark for use to directly observe. Same for dark energy; it's energy that, by the time it reaches us, has fallen below the cosmological background radiation level - and therefore is "dark".
"We KNOW that light can be sped up and slowed down by the media it traverses. All age dating must be corrected for the drift of these constants."
So, you're saying that because light moves slower in air or water, this somehow effects time. Riiight. You do realize that the slowing of light's speed through a medium is within a few percent of C, yeah? Besides which, you're essentially trying to say that just 6000 years ago, the vacuum of space was denser than plexiglass.
"The red shift evidence points to the fact that this change has been about a factor of 300 million."
Actually, the red-shift from distant stars is uniformly from within visible spectra to within visible spectra. Since the visible spectra is a band that is from ~800nm to ~400nm, without doing too much math, that means the maximum red shift would be a factor of four (lowest=violet, highest=200nm -> lowest=1600nm to highest=800nm), not a factor of 300 million. I don't know where the hell you got that figure.
This also shows that much of the universe is speeding away from us at about 75% c.
*shrug*
Hey, maybe, on the Seventh Day, when your God was resting, he let out a stink-bomb of a queef and the rest of the universe just ran.
God bless his holy queeftitude.
"This drift is however highly nonlinear over time."
Yeah, that's convenient. You have anything to back that up with, or are you just making it up as you go along?
I'm really sorry that you think 'Magic Man Done It', dude, but you really gotta stop trying to pass off your pseudoscience in a forum full of real science buffs.
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Calculated for the fun of it:
I am 187.2 mega molar planck lengths tall.
One mega molar planck length is 1.038039 cm long.
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Correction: 1 Mmolhl = 0.9633547008547008547008547008547 cm
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........Besides which, you're essentially trying to say that just 6000 years ago, the vacuum of space was denser than plexiglass....
Actually just the opposite. Light travelled very much faster than today and radioactivity also proceeded at a proportional faster pace.
(....This also shows that much of the universe is speeding away from us at about 75% c......)
That is only true if the doppler assumption holds. It is this incredible assumed velocity of distant galaxies that makes it necessary to postulate dark matter and energy. The measured fact is that the red shift is QUANTIZED. This precludes the doppler effect as the cause of the red shift.
If the speed of light changed, and there is other evidence that it has slowed down about 4% since it was first measured, then all time keeping mechanisms using the atomic forces (electroweak and electromagnetic) would have to be corrected for this. There is evidence that even now, the clock using the atom as time keeping mechanism is still slowing against clocks that use gravity to keep time. Equations governing gravity, unlike those of the atom, have NO time dependent elements in them. Gravity depends ONLY on mass and distance, nothing else. Before the speed of light was actually measured to be finite, the prevailing "accepted" scientific dogma was that light speed was infinite. It took about 50 years before it became "accepted" that light had a definite velocity.
Therefore if you say that the universe is billions of years old, as measured by atomic time, you would be correct. However, that translates into a much smaller (in the thousands) number of gravity years as defined by the earth's orbit. There is a highly non-linear conversion between the two clocks.
(....So, you're saying that because light moves slower in air or water, this somehow effects time.....)
It affects the atomic clock we use to MEASURE time. The electrical and magnetic properties of free space are measured and determine the speed of light in the same way that these same parameters affect an electromagnetic wave in any other medium. The possibility that the idea of billions or even millions of years collapsing into the only thousands (not necessarily 6000) is like a big stink bomb with evolutionists.
All theory is gray
Ah, ok. So this *is* a Religious argument.
Why didn't you just say so at the start so I didn't waste my time?
Whichever way you look at it, it's true. I'm not.
A fossil of the exact common ancestor at the exact point these two particular lines diverged? Probably not. However, there is plenty of evidence of a tree of life branching from an original organism. Airplane and oxcarts are tools designed by a highly intelligent tool-making species. I won't respond again, but if you really want to get a basis of understanding of the evidence for evolution, spend a lot of time on talkorigins.org.
You're still making the assumption that the speed of light has changed, you're invoking quantization of the red shift (which only postulates that the energy of light, ie: its frequency, decreases as it travels in discreet steps - not that the speed of light actually changes). This is observed over long distances and light isn't affected over conventional ones. As a result, not effecting the vibration of atoms, as is measured by atomic clocks, and not effecting the decay rates of radioactive atoms.
That said, red shift quantization is an effect that's been pretty well known among astronomers since 1987, and is generally taken into account when giving estimates of the size and age of the universe.
Meanwhile, there's evidence that atomic clocks are actually speeding up relative to the rotation of the earth - but this is only because tidal effect gradually decreases earth's rotational speed to match that of its orbital speed, much like what has happened to the moon.
"The possibility that the idea of billions or even millions of years collapsing into the only thousands (not necessarily 6000) is like a big stink bomb with evolutionists."
Only because it's a stupid, unsupported idea that creationists with just enough smarts to think they're clever like to tout. It's a bad habit to search for holes in scientific theory to hide in. Those holes will be filled one day, and you'll find that location a little snug.
Seriously, you'll do better just holding faith in the face of evidence than trying to mangle evidence to fit your faith.
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......which only postulates that the energy of light, ie: its frequency, decreases as it travels in discreet steps.........
If the frequency of the light, that is its energy, changed, that would violate well established conservation laws. The energy of light doesn't change when it slows down in water or glass. So why should it change when it travels through the medium of free space? It is still unclear how the electrical an magnetic properties of space change as it expands. The large new accelerator now being built at CERN in Europe may give us new insight in some of this and other mysteries.
(....Meanwhile, there's evidence that atomic clocks are actually speeding up relative to the rotation of the earth......)
You are correct there. But the rotation of the earth is not controlled by gravity, but simple inertia. Tidal friction does slow this rotation as well as the orbit of the moon. The orbit of the earth around the sun however is determined by gravity and distance to the sun. The atomic clocks have slowed in relation to this.
Another evidence that the billions of years is bogus is the fact that there are still comets. Astronomers realize this and postulate fictions such as the Oort cloud as a source of new comets. The problem is that no such thing has ever been observed. Comets only last about 15000 years or less, before they are dispersed into space.
(..you'll do better just holding faith....)
Evolution is faith that present processes (including radioactivity) have always been as we observe them today. It is faith that fossils form over long periods of time. Time, lots of time is the magic faith ingredient of the religion of evolution. Nobody has ever made a fossil, nor observed one formed today, because dead bodies simply decay. The Evolution religion has pulled of a neat trick: Label it as science and get support from my taxes. This patently unconstitutional.
So, you can hold onto your faith that you have no higher purpose and descended from a rock or your ancestors crawled out of the primordial slime. I'll hold onto mine that I was created by a transcendent, intelligent God, who has a plan for His children.
All theory is gray
"The energy of light doesn't change when it slows down in water or glass. So why should it change when it travels through the medium of free space?"
No vacuum is perfect. Encountering interstellar hydrogen could easily explain why light remodulates down in discreet steps. There are plenty of explanations that are less wonky than postulating a variable speed of light.
"But the rotation of the earth is not controlled by gravity, but simple inertia. Tidal friction does slow this rotation as well as the orbit of the moon."
Tides are an artifact of gravity on a large enough body. Don't contradict yourself.
"Evolution is faith that present processes (including radioactivity) have always been as we observe them today. It is faith that fossils form over long periods of time."
Blah blah. The difference is that if a fact comes along to change how existing theories interact with one another, things get modified to fit. This wouldn't do with a faith, but it's not people's ego's we're after here, it's a model of how the universe works.
"So, you can hold onto your faith that you have no higher purpose and descended from a rock or your ancestors crawled out of the primordial slime. I'll hold onto mine that I was created by a transcendent, intelligent God, who has a plan for His children."
So, you'll hold on to the idea that your the slave of some deity, and I'll hold onto the idea that my destiny is self-determined.
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doh, nt
It is no longer uncommon to be uncommon.