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 ...

When you snorkel or dive in Hawai‘i you will more than likely swim right over several species of drupe shells. These marine snails are from one to two inches long and in old Hawai‘i they were called ...

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 ...

More than half a billion years ago, mystery predators bored into shelled animals' defensive casings. Some of the holey shells became fossilized, and now tell us the story of the earliest known battle ...

Examples of Lapworthella fasciculata shells (under scanning electron microscope) from the Mernmerna Formation, Flinders Ranges, South Australia, showing holes made by a perforating predator. Scale ...