Bipedalism also provides a good way to keep cool. When the sun is hottest (noon), only a small portion of the body (the top of the head and shoulders) is always in the light. But the entire side of the body is subject to the wind. By reducing the heat intake and enhancing ventiliation, bipedalism allows us to better survive hot environements.
On a long enough timeline, perhaps. But some species, for instance, sharks, have not changed noticably in the past umpteen million years.
As a technical side, there are dozens of definitions for "species" and "speciation", none of which are popularly agreed upon, which clouds the issue further.
The fact that evolution has not yet yielded any productive predictions does not mean that it will never do so. An example: When Newton told everyone about gravity, saying "unsupported objects fall towards the center of the earth", they said, "yeah, so what? everyone knows this". Hundreds of years later, a couple of crazy Americans figured out how to use air as a support for an object and built a plane.
By identifying factors that can lead to adaptation and evolution, we can build a foundation upon which to explore the depth of evolutionary theory. Evolution, after all, is a fact; it is the mechanism by which evolution operates which we evolutionists argue.
Slashdot Mirror
Bipedalism also provides a good way to keep cool. When the sun is hottest (noon), only a small portion of the body (the top of the head and shoulders) is always in the light. But the entire side of the body is subject to the wind. By reducing the heat intake and enhancing ventiliation, bipedalism allows us to better survive hot environements.
On a long enough timeline, perhaps. But some species, for instance, sharks, have not changed noticably in the past umpteen million years. As a technical side, there are dozens of definitions for "species" and "speciation", none of which are popularly agreed upon, which clouds the issue further.
The fact that evolution has not yet yielded any productive predictions does not mean that it will never do so. An example: When Newton told everyone about gravity, saying "unsupported objects fall towards the center of the earth", they said, "yeah, so what? everyone knows this". Hundreds of years later, a couple of crazy Americans figured out how to use air as a support for an object and built a plane.
By identifying factors that can lead to adaptation and evolution, we can build a foundation upon which to explore the depth of evolutionary theory. Evolution, after all, is a fact; it is the mechanism by which evolution operates which we evolutionists argue.