Lyrs wrote:Ever Since Darwin: Relections in Natural History by Stephen Ray Gould
Very very VERY interesting and well-thought-out book. I highly recommend anyone interested in the subject to read.
BTW, Jon, the finches actually did diverge into different species, it just took freaking forever. However, that was merely an example of bottlenecking, which is evolution caused by created geological isolation due to some form of natural disaster (In this case the Hurricane that seperated them). Most evolution works mainly through mutation, did you know that species are constantly mutating? It's true, but only about 0.0001% of all mutations are anything of any significance. However, if one of those genetic mutations causes the individual of the species to survive more frequently then the rest of the species, then over time that trait will change the species. If you couple that together with the potential geographical and/or reproductive isolation, then you have one species turning into many. And this takes a long, long time mind you.