Tyrannosaurus rex

Description

Tyrannosaurus rex had a massive skull, powerful hind legs and short forelimbs with two fingers. Its thick, serrated teeth were suited to crushing bone and tearing flesh. Isotopes and bone growth indicate an active predator that could also make use of carrion; the balance between hunting and scavenging cannot be determined precisely. Adult animals varied considerably in mass, so familiar body-size figures are estimates.

Habitat

River deltas, coastal plains and subtropical forests of western North America.