Fossilised remains of newly identified dinosaur species and mammal suggest they were both predator and quarry to each other.

But the tyrannosaurs that preceded it weren’t always at the top of the food chain—one of those myths about dinosaurs you need ...

All signs indicated that this was an apex predator similar to T-Rex, but that would make it one of at least two top-of-the-food-chain dinosaurs known to exist at the time. How could one ecosystem ...

Imagine a crocodile built like a greyhound—that's a sebecid. Standing tall, with some species reaching 20 feet in length, ...

A massive predator once roamed the Earth, towering over its rivals and casting a long shadow on the ancestors of T. rex. This giant, now known as Ulughbegasaurus, ruled the prehistoric world around 90 ...

A remarkable fossil discovery in northeastern China has revealed a twisted prehistoric food chain – a dinosaur species that devoured a mammal, which itself may have preyed on dinosaurs.