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Oldest Modern Humans Found

DrLudicrous writes "Anthropologists have reconstructed and dated three skulls from Ethiopia that they believe to be the oldest anatomically modern human skulls in existance. They date to 160,000 years ago, in agreement with genetic studies that pin the arrival of modern humans to at least 150,000 years ago. The skulls also demonstrate evidence of ritual burial." UC Berkeley has the original release as well.

20 of 861 comments (clear)

  1. Hominids by xtrucial · · Score: 5, Informative

    Not that hominids, though, arrived considerably earlier than this... what's the latest figure? somewhere in the 4 million range? Some of them wren't exactly dumb either; neanderthals, in fact, are supposed to have had more brain mass than humans did/do.

    1. Re:Hominids by Jareeedo · · Score: 3, Informative

      Brain size doesn't correspond to intelligence. The significance regarding hominid brains has less to do with mass and more to do with the development of Broca's area which enables the capacity for language.

    2. Re:Hominids by $alex_n42 · · Score: 5, Informative

      Just though I should fire up the old google and check it out for myself, here's what I found:

      "While the largest Homo erectus brains were about 1250 ml (2 imperial pints) and modern brains average about 1200 - 1500 ml in volume, female Neanderthal brains were about 1300 ml and those of males about 1600 ml, extending to 1740 ml in the Amud man." --Stringer, Christopher & Gamble, Clive. In Search of the Neanderthals. New York: Thames & Hudson, 1993. link

      "The Neanderthals were fully bipedal and had a slightly larger average brain capacity than that of a typical modern human (though the brain structure was organised somewhat differently)." --link

      A good discussion and some comparisons here: link

      Of course by the time I've read it all and wrote this, someone might have posted some relevant information already. Just though I'd share anyway.

    3. Re:Hominids by pajamacore · · Score: 5, Informative

      The Broca's area in H. neanderthalensis was as fully developed as it is in H. sapiens. Also, the basicrania of Neanderthals were just as flexed as anatomically modern humans. Neanderthals also possessed an enlarged canal in the thoracic vertebrae allowing for fine control over phonetically significant movements of the rib cage.

      The extent to which Neanderthals could speak was determined by their anatomy. The larynx was located high in the vocal tract and the oral cavity was significantly longer than in H. sapiens. This differently arranged vocal tract could not form the 'i', as in tea; 'u', as in too; and 'a', as in tall. Nor could it pronounce 'k' as in kite and 'g' as in god.

      However, as Steven Pinker put it: "In any case, e lengeege weth e smell nember ef vewels cen remeen quete expresseve, so we cannot conclude that a [hominin] with a restricted vowel space had little language."

    4. Re: Hominids by Black+Parrot · · Score: 3, Informative


      > The extent to which Neanderthals could speak was determined by their anatomy. The larynx was located high in the vocal tract and the oral cavity was significantly longer than in H. sapiens. This differently arranged vocal tract could not form the 'i', as in tea; 'u', as in too; and 'a', as in tall. Nor could it pronounce 'k' as in kite and 'g' as in god.

      > However, as Steven Pinker put it: "In any case, e lengeege weth e smell nember ef vewels cen remeen quete expresseve, so we cannot conclude that a [hominin] with a restricted vowel space had little language."

      Notice that the modern Tashlhiyt Berber language is so stingy with vowels that stop consonants can serve as the nucleus of its syllables. There simply isn't any theory that tells us a minimum number of phonemes required for oral communication. Moreover, some linguists think sign language may have preceded oral language anyway.

      There have been way too many dogmatic claims of an absence of language in early hominids without any good supporting evidence. The very rudimentary linguistic skills of chimps and even gorillas suggests that linguistic ability has deep evolutionary roots.

      --
      Sheesh, evil *and* a jerk. -- Jade
  2. Re:What I don't understand by Frostalicious · · Score: 4, Informative

    I mean, our ancestors were not stupid, they posessed the same intuition and logic that we do today. Whay did it take so long to get where we are now though?

    I believe it had to do with climate. Prior to say 8,000BCE, it was too cold (ice age ending). They couldn't grow crops and survived through hunting/gathering. This environment could not support more advanced civilizations. Small groups of people could follow herds around for food, but a big city couldn't sustain itself.

  3. Re:How come there are modern and non modern Human? by JebusIsLord · · Score: 4, Informative

    Uhh, Homo erectus was not the first hominid. Not by a long shot. Try Ardipithecus ramadis at 5 to 8 million years ago, or arguably something earlier. A. ramadis is most likely bipedal however, which is typically the criteria for early hominids.

    If you were refering to the first in the Homo genus, that would be (in my opinion) Homo habilis or possibly Homo heidelburgensis. These were characterized by the earliest confirmed tool use (Homo habilis means "handy man"). These fellas were around for several hundred thousand years before H. erectus and H. ergaster.

    Sorry about the lack of italicised names, I'm lazy.

    --
    Jeremy
  4. In other paleontological news... by Goonie · · Score: 4, Informative
    It seems we were almost wiped out 70,000 years ago, according to this BBC News article.

    IANA geneticist, but I wonder whether some rapid evolution occurred amongst these small subgroups that gave modern humans the advantage over the Neanderthals?

    --

    Any sufficiently advanced technology is indistinguishable from a rigged demo
    --Andy Finkel (J. Klass?)
  5. Re:What I don't understand by Jareeedo · · Score: 5, Informative

    Hell, most of North America was populated with hunter/gatherers until Europeans came, and it's not like they weren't 'smart' enough or anything.

    Thats not true. Specific cases in North America include the Mississippians, the Anasazi and the Calusa. These were sophisticated societies. They had relatively complex economies, large cities consisting of thousands of people, organized religion, art and centralized government. What is true, is that we know very little else about these societies, as the Europeans brought diseases which essentially wiped out these people.

  6. Re:Brain Food? by Montreal+Geek · · Score: 4, Informative
    I was rather surprised by the possibility of ritualistic brain-eating amongst the earliest ancestors of our species. Maybe they were extracting the brains not for appetizers, but for the same reasons Egyptians removed the brains prior to mummification: so that dead would not be encumbered by the useless grey gunk inside their head on the journey to the afterlife.

    Not necessarly strange; it has been common in human cultures to associate eating something with assimilating the attributes of the eaten, or desirables attributes associated to the eaten. Examples of this are present in basically all cultures, modern day included-- look into why tigers are hunted to extinction in asia or why eating oysters is still associated with erotism and sexual potency.

    It's not much of a stretch to guess that a culture that has figured out that the head/brain is the where intelligence/personality/memory lives (if only by looking at the effect of a bad bonk on the head) might want to preserve/steal the attributes of the recently dead.

    The point of the research team is just that they have no way of knowing-- wether the brain was eaten or just discarded as a side effect of the ritual is undeterminable. The only thing they do know is how they did it, not why.

    -- MG

  7. Re:Wait a minute... by shatteredpottery · · Score: 3, Informative
    I think what he's referring to was a project a few years ago. The premise was, since all of our mitochondria are inherited from our mother, it should be possible to track human mitochondrial DNA back to a single female ancestor (or "Eve", fo r obvious reasons).

    The first such major project to act on this took several years and thousands of DNA samples. They determined that Eve was from the Phillippines, and this was announced with quite a bit of publicity, articles in Time magazine, etc. Unfortunately, it was soon found that the analysis had been done with a faulty understanding of how the analysis software worked. Or something like that. Can't remember anymore. Anyway, for whatever reason, the results were not meaningful, and the data they had gathered couldn't be re-used. It was quite a disappointment for all involved. But you still hear references to Eve having lived in the Phillippines because of this.

    --

    A witty saying is worth nothing - Voltaire

  8. So what about Petralona? by prodromos · · Score: 3, Informative

    "Homo sapiens (archaic) Discovered by villagers at Petralona in Greece in 1960. Estimated age is 250,000-500,000 years. It could alternatively be considered to be a late Homo erectus, and also has some Neandertal characteristics. The brain size is 1220 cc, high for erectus but low for sapiens, and the face is large with particularly wide jaws." Actually, the age was originally determined to be much older, 700,000-800,000 years, but there seems to be an organised program to discredit those findings, presumeably because it turns all the established theories on the origins of man on their head. However, even the most conservative estimates are still much older than the ethiopian finds.

  9. Re:Wait a minute... by boomgopher · · Score: 5, Informative

    Saw a show on something related to this, "The Journey of Man", difference was using mutations on X chromosomes, which are passed unchanged from father to son, aside from random mutations. Anyways, a researcher (Spencer Wells) analysed the mutations in the X chromosomes from people all over the world, and came up with a map of sorts on the way people branched out.

    In summary, we're all descendant of a man who lived in Africa about 50,00 years ago (~2000 generations), with genes basically the same as bushmen.

    The researcher laid it out quite clearly and convincingly, so it's worth a watch/read:
    http://pup.princeton.edu/titles/7442. html

    It really made me realize how related we all are, and silences the idiots who think blacks are closer to the apes, and whites are more advanced, etc.

    --
    Your hybrid is not saving the environment. Its purpose is to make you feel good about buying something.
  10. Re:Wait a minute... by msaavedra · · Score: 5, Informative

    Just a small nit-pick: I believe you mean Y chromosome, not X. All men get their X chromosome from their mother, and can only pass it on to their daughters. Y chromosome inheritance works as you described, though.

    --
    "Any fool can make a rule, and any fool will mind it."
    --Henry David Thoreau
  11. Re:What I don't understand by spun · · Score: 3, Informative
    Huh. Why is there no large scale evidence of human on human violence until ~4500bc then? No mass graves, no body armor, no fortifications of dwellings, no weapons that are primarily aimed at killing other humans (like swords.) The only thing you'll find is the occasional wound caused by a weapon which may well have been a hunting accident.


    No, early humans used no coercive violence prior to massive climate shifts in 4500bc which caused the drying up of the Sahara and central Asia. This lead to widespread famine and the birth of violent, dominator type cultures. For a very thorough analysis of this idea, see an article titled "The Origins and Diffusion of Patrism in Saharasia, c.4000 BCE"


    Your times are off, as well: humans evolved "modern" behavior 25,000 years before the atlatl, and agriculture 10,000 to 20,000 years before the bow.


    Organized coercive violence caused human development. Bah. Just what the world needs, another apologist for violence.

    --
    - None can love freedom heartily, but good men; the rest love not freedom, but license. -- John Milton
  12. Re: This find has 'flawed' written all over it. by Black+Parrot · · Score: 3, Informative


    > What struck me was that the dating was done using layers of volcanic minerals. These folk may well have been ritually killed or buried, my question: How deep were they buried?

    Competent archaeologists can see where holes have been dug, and report them regularly in their reports. When you dig a hole, put something in it, and fill it back up, the dirt doesn't go back in the same way it came out. So the lowest undisturbed layer above a grave gives a terminus ante quem for the date of the grave.

    --
    Sheesh, evil *and* a jerk. -- Jade
  13. Re:Call the editor! by osgeek · · Score: 5, Informative
    The difference is that when Science learns that it's wrong, it admits it and moves on to try to learn more about the universe.

    When the Bible is shown to be wrong, people hold to it doggedly, making excuse after excuse until they're left in exile on the lunatic fringe defending the utterly laughable (Fundamentalists), or they must dilute the "facts" in the Bible so much that what they're left with is practically useless as a religious text describing an almighty Creator(Catholics).

    For those who take the Bible literally, believing that all words of the Bible are true and perfect:
    • No, a rabbit does not chew its cud.
    • Jesus lies quite egregiously to try to save his own skin in the Bible when questioned by the Pharisies.
    • The Earth is not flat with four corners.
    • No evidence exists for a worldwide flood between 4,000 and 6,000 years ago, and even less evidence exists that we and all land/air animals came from creatures that rode an ark during that time.
    • The Egyptians, who were meticulous record keepers, made no mention of massive Jewish slave use that was ripped away from them by the coming of Moses. Further, if the Nile had been turned to blood, it would have caused untold destruction upon the entire region that depended upon it for their very survival. We would have learned about it by now, most likely.
    • Jesus describes his "kingdom" in some detail then goes on to say how not even all of his Apostles would be dead by the time he returned to his glory for all to see... I think it's safe to say that prophecy was full of crap.
    • Christians are completely unable to do any of the things that Jesus claimed they could with even a little faith: They can't move mountains, they can't whither trees or tell them to jump into the ocean (well, they can, but nothing happens), they can't walk on water, they can't provably cure the sick, they can't do shit. Furthermore, all followers of Christ are supposed to be able to prove the divinity of their cause. Jesus said they would prove it by drinking deadly poison, handling deadly snakes, and speaking in tongues (in a way such that all people of all languages can understand what they say).
    • To believe that Jonah spent days inside a whale is an utter joke. Do you believe all of the ridiculous claims made by Islam and Hindu texts? Hmm, I wonder why not? Can we say special pleading?
    • Hey, from your perfect Bible, name me the exact ten commandments.
    Face facts. The Bible is so obviously wrong, you'd have to be heavily deluded or bribed to believe otherwise. I guess the elusive promise of everlasting life is quite a bribe. I'd go for it too, but my sense of intellectual honesty just can't stomach all of the bullshit.

    Just because Christians are so simple as to believe in an obviously wrong religious text doesn't mean that Science is inferior when it admits its mistakes and moves on.
  14. Re: Call the editor! by Black+Parrot · · Score: 4, Informative


    > I would like to see some credible evidence before I'll believe that contradictions exist in the Bible. I would agree that apparent contradictions exist, but I haven't seen a legitimate one yet in any accurate translation

    That's because the interpretation is underconstrained. Theologians can cough up any "explanation" at all, so long as they preserve the claim that the Bible is true.

    For example, the New Testament variously reports that Judas hanged himself or that he threw himself down a stairway and burst open. In Sunday School I was taught that he hung himself at the top of a stairway, the rope broken, and he tumbled down the stairway.

    Fairy tales and the fairy-tale logic used to explain away the obvious contradictions in them simply aren't falsifiable. You could give Homer or Raiders of the Lost Ark the same treatment.

    Meanwhile, if you try to evaluate the Bible objectively by comparing it to what we know from history, archaeology, geology, etc., it is found often to be very, very wrong. Once you grok that fact you suddenly lose interest in adding extra-biblical epicycles to reconcile the contradictions, because you see the book for what it is: a centuries-long accumulation and repeated re-editing of traditional stories, all done at the hands of superstitious and falible men.

    Though there's still some wisdom mixed in with the fiction and nonsense, for those who care to look for it.

    --
    Sheesh, evil *and* a jerk. -- Jade
  15. Re:Yay Creationism! by Tyreth · · Score: 3, Informative

    This is the result of a misunderstanding of creationism.

    And I wouldn't worry about you being marked as a troll. Evolutionists are almost never marked troll. I find however, no matter how rational or kind/non confrontational I make my pro-creationist posts they get modded troll. But I don't mind, people like my other posts enough that my karma will be impervious to their attacks!

    Here is what happened. Adam and Eve were created man and woman, the first two humans. They had many children, sons and daughters. These sons and daughters married each other (if there was an official ceremony) and had children. These children were safe from the dangers of mutations since they were the offspring of flawless parents. That means there were no common recessive harmful mutations to share amongst each other. Incest was only outlawed much later (around 2000 years later I think) when mutations had become rife and the dangers were stronger. Then it wasn't restricted to cousins - in fact, amongst cousins I believe the danger is ~2% or something, but that could be wrong.

    As for going over the hill, that is a load of crock - and the result of a misreading of the Bible (or perhaps imagining verses that aren't there), and a misunderstanding of genetics.

  16. Arguments creationists should not use by geekotourist · · Score: 3, Informative
    How come it takes so long for refuted stories to stop showing up in creationists' arguments? In general, even when a major creationist group itself says not to use certain arguments, you'll still find them used. Sometimes creationists will ignore data that is directly presented to them. For example, Gish kept on telling the story of the supposedly hidden skills of Java man 15 years after being shown he was wrong.

    But specifically, in reference to your listing of Piltdown, Nebraska man, and Java man, read the extensive talk.origins FAQs on these very items: (emphasis added by me)

    • Nebraska man: "as creationists tell the story, evolutionists used one tooth to build an entire species of primitive man... before further excavations revealed the tooth to belong to a peccary... The true story is much more complex... The imaginative drawing of Nebraska Man to which creationists invariably refer... was done for a British popular magazine... ...Most other scientists were skeptical even of the modest claim that the Hesperopithecus tooth belonged to a primate... It is simply not true that Nebraska Man was widely accepted as an ape-man, or even as an ape, by scientists, and its effect upon the scientific thinking of the time was negligible."
    • Java man: "Many creationists have claimed that Java Man, discovered by Eugene Dubois in 1893, was "bad science". Gish (1985) says that Dubois found two human skulls at nearby Wadjak at the same level and had kept them secret; that Dubois later decided Java Man was a giant gibbon; and that the bones do not come from the same individual. Most people would find Gish's meaning of "nearby" surprising: the Wadjak skulls were found 65 miles (104 km) of mountainous countryside away from Java Man. Similarly for "at the same level": the Wadjak skulls were found in cave deposits in the mountains, while Java Man was found in river deposits in a flood plain (Fezer 1993).

      Nor is it true, as is often claimed, that Dubois kept the existence of the Wadjak skulls secret because knowledge of them would have discredited Java Man. Dubois briefly reported the Wadjak skulls in three separate publications in 1890 and 1892. Despite being corrected on this in a debate in 1982 and in print (Brace 1986), Gish has continued to make this claim, even stating, despite not having apparently read Dubois' reports, that they did not mention the Wadjak skulls (Fezer 1993)."

    • Piltdown: It took *less* than 50 years and suspicions that they were a hoax existed by 1914. Even so, Piltdown represents a bad episode in science: "...the hoax points to common and dangerous faults. The hoax succeeded in large part because of the slipshod nature of the testing applied to it; careful examination using the methods available at the time would have immediately revealed the hoax."

      In the 90 years since then have we developed better and more rigorous testing methods? Yes. But even during those 40 years it took for the full hoax to be revealed, faults with Piltdown were found, long before testing showed that they were recent skulls: "...It should be remembered that, at the time of Piltdown finds, there were very few early hominid fossils; Homo neanderthalensis and Homo sapiens were clearly fairly late. It was expected that there was a "missing link" between ape and man ... Piltdown man had the expected mix of features, which lent it plausibility as a human precursor.

      This plausibility did not hold up. During the next two decades there were a number of finds of ancient hominids and near hominids, e.g. Dart's discovery of Australopith