Scientists have discovered the oldest known animal with saber teeth: a predator that lived 270 million years ago. This animal, from before the age of the dinosaurs, was a dog-like creature that was ...
Pantolambda bathmodon, a stocky, now-extinct mammal, lived 62 million years ago and reached roughly 92 lbs in adulthood, which was a much larger size than most mammals that came before. Video credit: ...
Birds are the undisputed champions of epic travel -- but they are not the only long-haul fliers. A handful of bats are known to travel thousands of kilometers in continental migrations across North ...