On Aug. 20, 1858, Darwin’s theory of evolution saw daylight for the first time. More than 165 years later, Sonoma County is still writing its own chapters of survival and extinction. On Aug. 20, 1858, ...

What do mountains reveal about primates? Mountains have a unique effect on diversity, messing with our understanding of animals through time, and pretty much just making evolution weird. And they ...

The story of two of the strangest animals on the planet just got a little stranger, thanks to clues revealed by a lone fossil specimen that scientists now say represents a long-extinct ancestor. The ...

The knotty sea spider, Pycnogonum litorale, is not actually a spider, but it does represent a significant early branch in the genetic family tree that includes spiders, as well as scorpions, ticks and ...