Biologists have wondered how the patterns on butterfly wings change.
Take a moment to consider the impact of labor on the development of evolutionary theory.
News from Princeton discusses the work of Tom Smith and Bridgett vonHoldt, who have solved a “long-standing finch beak mystery.” The answer turned out to be Mendelian, not Darwinian.
Man has been searching for fossils, or stumbling upon them, for millennia.
What amazes me is how the female butterflies can smell dill over great distances, and so deposit their eggs on the right plants.