Evolution Keeps Repeating Itself. Scientists Are Starting to Understand Why
Species that aren't closely related can look identical thanks to a bizarre trick of evolution. A new study reveals part of the mechanism for creating nature's unrelated twins.
Darwin’s Finches Are In Danger Because a Parasite Is Changing Their Mating Song
By deforming their beaks, an introduced parasite is causing two finch species to hybridize, changing the course of their evolution.