If you didn't know better, you'd have been forgiven for being suspicious of the timing of the opening of the American Museum of Natural History's (AMNH) exhibit on Darwin in the middle of last month.
In the 20th century, animals such as mules and ligers that had parents of different species were considered biological flukes, but genetic sequencing is beginning to unravel the critical role of hybridization in evolution.
Extending her initial studies of social wasps, Mary Jane West-Eberhard has spent her career probing the evolutionary relationship between social behavior and developmental flexibility.