Perusing the comments at STACLU can be an amusing way to pass the time. You think the main writers there are clueless? You should see their fans. I particularly liked this little tidbit about evolution from kerwin_brown:
To change from horse to a donkey or vise versa requires at least one and possibly two monstrous changes because of the chromosome difference. This is very unlikely to occur in nature and yet there is evidence that it happens on a regular basis. It sounds like miracles are normal in nature.
If it’s very unlikely in nature, yet it happens regularly, can it really be said to be unlikely? What kerwin calls a “monstrous change” is not at all unusual; the chromosome counts of various plants and animals can differ wildly because of duplication and fusion. The horse has 64 chromosomes; the donkey has 62. But even within horses, you have Przewalski horses from Mongolia, the most ancient extent species of horse, and it has 66 chromosomes). How could such distinctive chromosome counts happen in nature? Generally, through either duplication or fusion.
Duplication happens during recombination under certain circumstances and it has happened many times throughout natural history. We can identify duplicated chromosomes the obvious way – by sequencing all of the chromosomes in a genome and comparing them to one another. Likewise, we can do the same for chromosomal fusions. Indeed, this provides us with powerful evidence of common descent with the great apes. Why? Let me explain.
All other species of ape have one more pair of chromosomes than humans do – 24 pairs rather than 23 pairs. Geneticists had long assumed that this was the result of the fusing of two chromosomes at some point after humans and apes split off from a common ancestor, and now with the ability to sequence the entire genome and compare chromosome to one another, that has been confirmed. Chromosome 2 in humans is a fusion of two chromosomes shared by all other apes, and we can tell this because right in the middle of chromosome 2 in humans there is a fused telomere (telomeres are the ends of a chromosome), indicating two chromosomes fused together at their ends to form one larger chromosome. The banding patterns are a clear match and were predicted before hand.
Thus, what we have here is powerful evidence for evolution, an accurate prediction made in advance based upon the common ancestry of humans and the other apes. Given the chromosome counts, if we shared a common ancestor then one of two things must have happened: either a chromosomal duplication took place in the line leading to modern apes, or a chromosomal fusion took place in the line leading to modern humans. The two can be easily distinguished with genetic sequencing, and voila, we have our answer. It’s unfortunate that so many are so ignorant of such facts.