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And an additional cost - you run the risk of loss of fitness at other gene sites due to inbreeding. The benefits of HbC only accumlate in the face of potent genetic costs.
It does become a tangled knot. You've got millions of individual organisms with tens of millions of different genes, each of...
The first sentence of the response made me giggle:
ID considers itself to have challenges? I thought the whole point was that it didn't have intellectual challenges.
Right, you have to be careful with your interpretations. After all, just because a series of mammal-like reptiles evolves, it doesn't necessarily mean that the primitive reptiles have gone extinct. So you can see primitive forms in rocks younger than derived forms. In the same way, we're...
Sure. Punctuated equilibrium suggests that the fossil record will be rich with transitions at higher taxonomic levels (reptile-to-mammal; dinosaur-to-bird; monkey-to-man), but relatively sparse transitions at the species level (smaller tyranosaurid-to-larger tyranosaurid; three-spined...
Well then you've taken with wind out of my sails, since common descent is the idea that's usually at issue in creationism/evolution debates. I get so roided up trying to force common descent down people's throats that I don't have the energy to argue the finer points like neutralism and whathaveyou.
It is a way to explain why species level gaps are to be expected in the fossil record. (and here I'm directly channeling Richard Dawkins) It's a perfectly Darwinian idea though. The evolutionary changes in punctuated equilibrium are still gradual - a compilation of minute changes over tens to...
Evolution has been and continues to be tested and verified almost every day. The same as Chemistry, it does so by assaying things not directly observable (atomic and molecular orbitals for chemistry, historical relationships among species for biology) using things that are directly observable...
Darwinism actually makes several very specific predictions. It's difficult to disprove now, simply because those predictions have been, by-and-large, borne out. But at the beginning it wasn't so clear which "creation" idea would be the winner. Lamark had a pretty well-respected evolutionary...
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