Macaque Monkey Goes Totally Bipedal
Freshly Exhumed writes "Add another bonus point for the Darwinians/evolutionists. A macaque at the Safari Park Zoo in Ramat Gan, Israel has recovered from a near-fatal illness in an unusual way: she has switched exclusively to walking on her hind legs. Given theories of human history that stress the effect of disease on events and changes, as in William H. McNeill's Plagues and Peoples, what if an illness was the cause of the shift to bipedal motion by our evolutionary ancestors, and rote imitation by offspring or another set of circumstances locked it in? No matter, this could be a fascinating study of the macaque's altered brain functions."
According to the psychology books I've read, it's automatic. At a certain age, children begin to walk on two legs, unless they are impaired (unlike talking, which must be taught at a certain stage of growth). A parent can try to "help" a child learn to walk, but they won't do it until the instinct kicks in.
You only need to be smart enough to survive until you can breed. Look around among your fellow humans- it don't take much to reach that point.
"Seven Deadly Sins? I thought it was a to-do list!"
If you take a look at how modern human bodies are constructed, the fact that we're bipedial by nature (as opposed to nurture) is pretty obvious.
Quadripeds don't walk on their rear knees, but on either their feet or their toes. Humans can't do this due to the differences in proportion between our arms and legs. Sure we can crawl on all fours -- but that's quite a bit different from being a real quadriped.
Mind you, at one point in time during human evolution things were probably different -- there would have had to have been an intermediate stage. The fossil record would appear to back this up, as there are hominids which have shorter legs and longer arms.
Yaz.
You might be interested to see this. I don't know how long it can walk at a time, but the blood pressure difference would seem to be insignificant. I've heard there are snakes that will die if you hold them vertically, though.
The part of the brain resposible for balance is the Cerebellum. It really hasn't changed much since we left the trees. Various structural changes in our skull allowed the cerebrum (frontal lobe) of the brain to grow larger.
Neanderthals and many species of proto-humans had flat foreheads, but walked upright.
"Learning is not compulsory... neither is survival."
--Dr.W.Edwards Deming
you missed the point of the demonstation, (it was richard leaky by the way, son of louis and mary leaky, who did a great deal of work in africa on human origins, particuarly Australopithecus)
.. all other mammals.
the fact that he was able to run down the gazelle, was not to do with how much energy the gazelle was using, rather it was to do with the differences in heat dissipation between humans and
obviously large amounts of heat are generated by the action of the muscles in running.
the only way other mammals have of dissipating this potentially fatal heat increase is to pant, losing heat through water evaporation from the tongue.
sweating is not an good heat loss solution for most mammals, as it takes very little heat from their bodies due to the dense covering of fur that is typical of mammals (except humans). Humans being largely hairless, are able to dissipate heat much more efficiently through sweating.
it is this ability to lose the heat generated by running that enables hummans to run down pretty much any other mammal, as the animal will have to stop (or else die of heat stroke) long before the human.
Bad Panda! No Bamboo for you! In matters of importance ACs will not be responded to. Want to say something critical,OK
umm, didn't UC San Diego discover genetic evidence of macro evolution in 2000/2001 (relating, IIRC, to leg pairs on insects or some such) when they demonstrated a protein which caused the organism to develop one less pair of legs.
Furthermore, there is no such thing as Scientific Fact. Everything, EVERYTHING, is a theory; even though many (gravity, thermodynamics) are discussed as fact. No theory stands longer than its disproof; dont yabber about it you fscking christian psycopath; disprove it and it will go away.
Just my $0.02
err!
jak
Disclaimer: My disparaging remark about christians should not lead you to conclude I am anti-christian. I spread my dislike of religion equally.