A tall, upright beast with slicing teeth was North America's top predator before the reign of dinosaurs.
Millions of years before LSD and rock and roll, dinosaurs munched on psychedelic fungus, a new study suggests.
Snakes have been around far longer than anyone expected, according to a new study on the new four oldest snakes on Earth.
Dinosaurs ruled the planet for 130 million years, so clearly they knew how to perpetuate themselves, but scientists have not had much to go on, in terms of their exact mechanics for doing the deed.
The newest dinosaur movie has lots of sounds coming out of its creatures, but how could its makers know what they sounded like?
Fossilized rod and cone cells — the kinds that help people see — have been discovered for the first time.
A detailed look at a modern bird's foot is revealing the secrets of dinosaur tracks set down more than 250 million years ago.
The artifact belongs to a new species within the 'bird-hipped' Ornithischian order, researchers said.
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