It was capable of growing beyond 30 feet in length and weighed around 10 tons—a mature elephant plus a sedan car.

Various video games feature extinct animals, predominantly dinosaurs, with creative interpretations mixing fact and fiction.

Bears one of the largest land predators alive right now, but today's bears are tiny compared to a massive prehistoric bear ...

Australia’s giant Protemnodon kangaroos didn’t die out everywhere at the same time. Instead, extinction proceeded one habitat ...

Strontium isotopes in animals' fossilized teeth reflect the ... we predicted these giant extinct kangaroos would have much larger home ranges. We were astounded to find that they didn't move ...

Evidence of this explosion is present throughout the Burgess Shale, leading to its establishment as a world heritage site by ...

Fossil teeth show extinct giant kangaroos spent their lives close to home – and perished when the climate changed.

A mystery has been building in the Caribbean. Decades ago, fossilized teeth were discovered in Cuba dating to about 18 million years ago. They were small but tapered, sharp and serrated. They were the ...

The remains of an Ice Age era animal have been unearthed in Lubbock during a road construction project. Here's what it was and what will happen next.

The repeated evolution of huge birds is part of the dinosaurian legacy. Beaked birds were the only dinosaurs to have survived ...