A new genus of sea monster has just been officially identified, and it’s a palaeontological weirdo. The new species has been ...

Sharks, skates and catfish also have tooth-like structures called denticles that make their skin feel like sandpaper. When Haridy studied the tissues of her catfish, she saw that the denticles were ...

A group of fossils of elasmosaurs—some of the most famous in North America—have just been formally identified as belonging to ...

An asteroid strike 66 million years ago caused millions of species to go extinct—including many mollusks. By studying the ...

Teeth are sensitive because they evolved from sensory tissue in both ancient vertebrates and ancient arthropods.

From deep-sea sponges to ancient tortoises, the longest-living animals can survive for centuries, even pausing aging.