For years, paleontologists have debated whether the T. rex-like dinosaur in the fossilized tableau and others are indeed ...

Paleontologists spotted injuries on the tails of duck-billed dinosaur fossils that might have occurred during mating.

Growth rings in fossilized bones suggest the diminutive dinosaur, Nanotyrannus, would never grow up to become a T. rex — plus ...

Even the apex predator of the Late Cretaceous had to watch its back. This investigation reveals the animals — from horned ceratopsians to massive ankylosaurs — that made hunting risky for T. rex. A ...