If all the world's a stage and all the species merely players, then their exits and entrances can be found in the rock record ...

Fossilized skeletons and shells clearly show how evolution and extinction unfolded over the past half a billion years, but a new analysis extends the chart of life to nearly 2 billion years ago. The ...

The chart above, by Randall Munroe of xkcd, shows just how much humans and domesticated animals dwarf what's left of mammals on land. "The human species has evolved to dominate the biosphere ...

Here are three key charts to help you make sense of where ... In the US, the virus has been found in at least 16 mammal species including red foxes, skunks, raccoons, and even a bottlenose dolphin ...