Add Yahoo as a preferred source to see more of our stories on Google. Researchers have discovered the oldest known example of a predator-prey “arms race,” based on their study of ancient fossils. This ...

More than half a billion years ago, mystery predators bored into shelled animals' defensive casings. Some of the holey shells ...

In a quiet part of what is now South Australia, more than half a billion years ago, life was locked in battle. The ocean floor teemed with small shelled creatures trying to stay alive as newly evolved ...

This week, the Texas coast has seen an influx of lightning whelks washing up with the tides. Recognized as the official state shell of Texas, the lightning whelk is a fascinating marine predator that ...