genitalia

Fossils Turn Out to Be a Rich Source of Information

The beetles, just a few millimeters long, come from a collection of fossilized arthropods – mainly insects – that was collected in Quercy, France more than 100…

How 'Secondary' Sex Characters Can Drive the Origin of Species

In the September 2008 issue of Evolution (now online), Armin Moczek and Harald Parzer examine males from four geographically separated populations of the…