Organisms that aren't closely related may evolve similar traits as they adapt to similar challenges. It's called convergent evolution, and familiar examples include the wings of birds, bats, and ...

A team of biologists in Montana and Germany has found that, regardless of type, those insects that express a protective stick- or leaf-like appearance all evolved the same basic body parts. In their ...

Alu elements, labeled with green fluorescence in these human chromosomes, make up more than 10 percent of the human genome. (Image from Bolzer et al., (2005) Three-Dimensional Maps of All Chromosomes ...