Pterosaurs: These flying reptiles, such as Pteranodon and Quetzalcoatlus, were not dinosaurs but lived during the same time. Mammals: Small mammals like Morganucodon were present during the age of ...

The fossilized leg bone of the terror bird went unidentified for almost 20 years. Nearly 12 million years ago, the largest ...

I write about the world of biology. Crocodilians—semiaquatic reptiles comprising crocodiles, gharials, alligators and caimans—are remarkable. Often described as living fossils due to their ...

Install Flash or see this feature's Non-interactive version. Crocodiles are not the only crocodilians. There are also caiman, gavials, and of course alligators. All told, these hardy reptiles are ...

This critically endangered animal, known for its long, thin snout with a bulbous growth at the end, split off from other crocodilian species 40 million years ago.

Analyzing a leg bone from a fossil site in Colombia, scientists have identified a massive “terror bird” that lived about 12 ...

Paleontologists recently discovered a rare mammal fossil in western Colorado. It's a genus of mammal that lived between 70 ...

Even people, the most fearsome predators ever to stalk the Earth, have failed to force into extinction any of the 23 species of crocodilians (see Who's Who of Crocodilians). What makes them such ...

Australian crocodile that held the world record as the largest crocodile in captivity has died, a wildlife sanctuary said on ...

The bone, described two decades after its discovery, suggests the species might have grown up to 20 percent bigger than other ...

Evolutionary biologist Federico Degrange from Argentina's Center for Research in Earth Sciences and colleagues found the bird ...

Researchers including a Johns Hopkins University evolutionary biologist report they have analyzed a fossil of an extinct ...