Hybrids Weave Darwin's Tree into a Web

We may be on the third wave of a scientific revolution in biology. It may be so big, the story "no doubt has Ernst Mayr hyperventilating in his grave," thinks evolutionary biologist Nora Besansky of the University of Notre Dame. Mayr influenced a generation of evolutionists. Is one of his core Darwinian concepts unraveling? In Science Magazine, Elizabeth Pennisi sets the stage:

Most of those who studied animals had instead bought into the argument by the famous mid-20th century evolutionary...