Quote:
Originally Posted by zuffa
You don't really want to consider any alternative except one that is as absurd as creationism. Your previous post made that clear.
But if your attention span can persist beyond 140 characters, you should read this with an open and scientific mind. It's from the mathematics department at UTEP |
please explain this with your open mind...
In 1971, ten Italian wall lizards (Podarcis sicula) were introduced to the island of Pod Mrčaru from a neighboring island. The lizards were left for decades, and compared to the colony from which they were taken. The wall lizards on Pod Mrčaru, having passed through a tiny genetic bottleneck, were found to have thrived and adapted to their new island. They were found to have shifted from a mainly insectivorous diet to one heavy in vegetation. This diet change seems to have driven dramatic changes in the lizards. The head of the Pod Mrčaru lizards is larger, and has a far greater bite force. These are key adaptations for dealing with chewing leaves. The most exciting sign of evolution is the development of cecal valves, muscles used to separate portions of the intestine. These serve to slow the passage of food through the intestine and give time for the bacteria in the gut to breakdown the plant matter for absorption. This is an entirely novel development in the Italian wall lizard, and a major adaptation.