Eyes, Part One: Opening Up the Russian Doll:
The more scientists study the eye, the more they recognize that Darwin was right. This is not to say that they know everything about how the eye evolved. Evolutionary biology is not an automatic answer machine that can instantly tell you every detail about how eyes--or any other organ--evolved. Instead, scientists study eyes of different animals, the proteins they are made of, and the genes that store their recipe. They come up with hypotheses about how evolution could have produced these results. Those hypotheses then point the way to new experiments. In this way, evolutionary biology is no different from geology or meteorology, or any other science that illuminates the natural world.Exactly. And he also contributes a passel of items to The Evolution Project.