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 ...

A study led by researchers at the American Museum of Natural History presents the oldest known example in the fossil record of an evolutionary arms race. These 517-million-year-old predator-prey ...

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 ...