Add Yahoo as a preferred source to see more of our stories on Google. What does it take to land a song on a Billboard chart? Billboard's managing director of charts & data operations, Keith Caulfield, ...

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 ...

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 ...