A new marine reptile has given scientists a window into the evolutionary period just after the worst loss of life the planet has ever known.
A 250-million-year-old skull found in southern Brazil is helping researchers increase their understanding of life before dinosaurs appeared on the scene.
As human civilization drives more animals to extinction, extreme sizes will likely become the new norm.
We have the whole dinosaur extinction thing figured out, right? A big rock smashed into Earth and wiped them all out. But an NYU geophysicist wonders what sent the rock Earth's way in the first place and pins the deadly event on a novel culprit.
The sixth mass extinction on Earth is upon us, confirms an extensive new study. Here are just a handful of its victims.
Venezuela's first-known dinosaur provides some of the earliest evidence that at least some dinosaurs lived in herds.
Its name might be a tongue-twister, but Leikupal Laticauda has vaulted into the upper reaches of dinosaur stardom. Why? Because it lived after almost nothing else did.
Dozens of fossilized whales, seals and other marine animals have been discovered piled up in an ancient tidal flat in northern Chile.
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