This article aims to discuss the largest non-dinosaur land animal to ever exist. There were actually several massive non-dinosaur creatures that roamed the earth before and after the reign of the ...

Of all the animals ever to have roamed the planet, the iconic long-necked, long-tailed dinosaurs known as sauropods stand unrivaled. No other terrestrial creatures have come close to attaining their ...

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: The ...

An image of University of Maryland geologist Thomas R. Holtz, Jr. holding a baby crocodile, one of the closest living analogs for dinosaurs. Similar to their dinosaur predecessors, crocodiles guard ...

A survey of prehistoric bones reveals that T. rex and some of its cousins had more than one way to reach enormous sizes. Evolution may have preserved that variation in modern animals too.

Before the mid-1960s, it was widely believed that all dinosaurs were cold-blooded, slow-moving animals. But in the summer of 1964, a team of paleontologists led by John Ostrom discovered Deinonychus, ...

Dinosaurs come in all shapes and sizes, and although the smallest dinosaur species were certainly notable in their own right, it is the largest of these creatures ...

Did Pachyrhinosaurus bones always gather in such great numbers? The thousands of Pachyrhinosaurus bones found at Pipestone Creek suggests that these animals lived together in herds. But did they ...