Debate kicked off in 1988 when a single small tyrannosaur skull discovered four decades earlier was given its own species ...

There are literally decades of research... based on a premise that this article overturns,” said one paleontologist.

T. rex's story has been turned on its head by a new discovery about one of the world's most famous fossil finds. One of the creatures locked in the “Duelling Dinosaurs” specimen is not a young T. rex ...

What if everything we know about T. rex growth is wrong? A complete tyrannosaur skeleton has just ended one of paleontology’s longest-running debates – whether Nanotyrannus is a distinct species, or ...

Contrary to popular belief, the tyrant lizard king was not built for speed. Instead, the mighty Tyrannosaurus rex was typically restricted to a brisk walk, according to a rigorous new computer model.