Newfound Species

Paleontologists have discovered fossils belonging to a newfound species of tyrannosaur, which could fill an important gap in the evolutionary history of T. rex.

Paleontologists in China have examined the remarkable gut remnants of a birdlike dinosaur that lived more than 100 million years ago.

A giant, ostrich-like dinosaur and its smaller cousin, also an ornithomimosaur, sprinted through what is now Mississippi about 85 million years ago.

The world's newest species of water bear has eight legs and eggs covered with tentacles.

The spider has unique clawlike hooks on its legs.

Researchers in Wyoming have named a new species of plesiosaur defined by its long neck and snappy jaws.

Meet Mbiresaurus raathi, the oldest African dinosaur (and one of the world's earliest) whose neighbors lived in Brazil.

Paleontologists in Chile have found the remains of an ankylosaur that represents a new dinosaur lineage.

Scientists have identified a woodlouse relative — a 10-inch-long, creamy yellow critter called Bathynomus yucatanensis from deep in the Gulf of Mexico.