For the first time in humans, researchers have discovered a large chromosomal rearrangement that bears the mark of natural selection, they report in the February issue of Nature Genetics. The ...

Beyond any reasonable doubt -- The bloodless fish of Bouvet Island -- The everyday math of evolution: chance, selection, and time -- Immortal genes: running in place for eons -- Making the new from ...

Most of us know that as living things evolve, they take on traits that help them thrive in their home environments. But how are certain traits "chosen" for future generations, and how are others cast ...