Long Live The Red Queen

November 1, 2010

Is evolution like a soccer game, with long periods of stability interrupted by brief flashes of exciting activity? Or is it like a treadmill, perennially churning? In the early 1970’s, evolutionary biologist Leigh Van Valen sat down to answer [Read more]

The Snowball of Speciation

October 4, 2010

Among evolution’s best tricks is the act of turning one species into two. Speciation, the foundation of a new species from an accumulation of small changes in an old one, has given birth to the incredible diversity of life on our planet. But [Read more]