After a century of decreased sightings, reports of a long-necked water monster the size of a hippopotamus are once again ...

Birds are actually dinosaurs. They evolved from theropods, a group of mostly meat-eaters that included Velociraptor and T.

University Of Edinburgh/Todd MarshallIllustration of an extinct marine ichthyosaur reptile on the hunt. When researchers in China discovered the nearly complete skeleton of a 240-million-year-old ...

A study of the fossilised fur of six mammals from the Jurassic and Cretaceous periods has found they were all greyish-brown in colour, which would have helped them hide from dinosaurs ...

Find out what was going on in the oceans while dinosaurs dominated the land in the Fossil Marine Reptiles gallery. See some of the most complete fossils of these prehistoric sea animals, including ...

Paleontologists have announced the discovery of a colossal marine reptile that may be the largest ever to have roamed Earth's oceans. The newly identified species, described in a study published ...

Our brief introduction to dinosaurs reveals a key feature that gave them an advantage over other prehistoric reptiles. Dinosaurs are a group of reptiles that dominated the land for over 140 million ...

On a spring day 66 million years ago, paddlefish and sturgeon swam in a river that meandered through a flourishing landscape populated by mighty dinosaurs and small mammals at North Dakota’s ...

Earth’s continents are constantly shifting. About 252 to 199 million years ago, all the continents were actually one huge “supercontinent” surrounded by one enormous ocean. Slowly, this ...

Where they lived: Dinosaur fossils have been found on every continent, including Antarctica. What they ate: Some ate plants, while others ate animals, including other dinosaurs. How big they were ...