(April 29, 2015 at 10:26 pm)snowtracks Wrote: Bipedalism appeared suddenly in the fossil record and was optimal soon as it appeared.Google "evolution of bipedalism in hominids" and you'll see that this isn't true. There are still questions about the evolution of bipedal hominids, but you seem content to shield yourself from even the stuff that has been learned in order to deny that it is known. If your worldview is dependent on ignorance to that degree, then it's time to broaden it or outright reject it.
"Well, evolution is a theory. It is also a fact. And facts and theories are different things, not rungs in a hierarchy of increasing certainty. Facts are the world's data. Theories are structures of ideas that explain and interpret facts. Facts don't go away when scientists debate rival theories to explain them. Einstein's theory of gravitation replaced Newton's in this century, but apples didn't suspend themselves in midair, pending the outcome. And humans evolved from ape- like ancestors whether they did so by Darwin's proposed mechanism or by some other yet to be discovered."
-Stephen Jay Gould
-Stephen Jay Gould