Speciation is one of the core issues in evolutionary biology. Sympatric speciation is the evolution of reproductive isolation without geographic barriers in which new species arise from a single ...

Trait data from more than 1,000 different vertebrate species suggests that new species often arise not because of pressures from different environments, but because of prolonged geographic separation ...

It's a bit like a character in a movie going off and having adventures that change him so drastically that when he returns, the folks in his hometown no longer recognize the way he looks and behaves.

Professor Emeritus Eviatar Nevo, the founder and director of the Institute of Evolution at the University of Haifa in Israel, knows a thing or two about evolutionary biology, as his thousands of ...