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

A mountain lion slinks through California’s golden hills right into our neighborhoods. As development creeps into wild lands, ...

So many extinction-level events happened in ancient times, it is a wonder anything survived. These the ones that killed the ...

“Scientists once believed that only animals who were vocal learners — like humans and parrots — could learn to find a beat,” ...

Be glad you weren't around when these Jurassic speed demons lurked the Earth. They were faster, and deadlier, than anything alive today.

Imagine a world where no wild lions or tigers roam the savannas or jungles. What would happen to ecosystems, prey populations, and biodiversity if these iconic predators went extinct in the wild? This ...

Massive kangaroos which roamed Australia more than 40,000 years ago likely became extinct because they were “homebodies” and ...