‘Teenage T. rex’ fossils ‘are a different dinosaur species’

Fossils thought to belong to teenage Tyrannosaurus rexes are adults of another predatory but more nimble dinosaur species, scientists have said.

A new analysis of the specimens suggests the animals who roamed the Earth 66 million years ago were not fast-growing juveniles but nearly full size, according to a report published in the journal Fossil Studies.

These fossils have been the subject of heated debate for decades after the first full skull was…