|MadSci Network: Evolution|
Modern observations on the Galapagos Islands in the Pacific Ocean have >noted that fluctuations in the food supply for finches cause measurable >weight differences in successive generations in a matter of just a few >years. The implicit meaning is that natural selection will favor larger >birds when food is scarce, while smaller birds will become weaker faster >and thus die faster. Yet we are told evolution takes thousands of years. >Please reconcile the time factor. Are these observations actually >evolution in action over a short time frame?
Re: VRD - evolution in finches
Try the links in the MadSci Library for more information on Evolution.