Paleontologists have discovered fossils of a 506 million-year-old tiny three-eyed predator nicknamed the “sea moth,” according to a new study.

Think birds can’t have spikes? Think again. Explore the world of spiky animals, from crowned cranes to hedgehogs and venomous ...

Meet Mosura fentoni, a bizarre 506-million-year-old "sea-moth" with three eyes, claws, and an abdomen full of gills.

After a brief rain 350 million years ago, a reptile pressed its claws into the ground. Its tracks now show the oldest-known ...

Scientists in Australia have identified the oldest known fossil footprints of a reptile-like animal on a slab of sandstone ...

The study of the physiology and ecology of animals that don't have backbones, ranging from worms to sea stars, and of parasites, which can often provide insights into complex ecosystems. (Sea star ...

Interested in animals that eat kelp and seaweed? Read on to learn about 14 amazing marine animals that chow down on this ...

A new species of flapjack octopus, with massive eyes and blood-red tentacles, has been discovered from a deep-sea canyon off ...

Researchers have found evidence of animals sailing across the oceans on accidental rafts of vegetation, fallen trees, and ...

Geologists working on surveying land in Mississippi stumbled upon an incredible find: the fossil of an ancient marine apex predator considered a "sea dragon" of the time.

Marine scientists have captured images of a mysterious tentacled creature that lives more than 3 miles below the ocean surface.