Spinosaurus was largest predator to stalk land or sea

A terrifying cross between Tyrannosaurus rex, a crocodile, and a whale was the largest predator ever to walk the Earth — or swim in its rivers.

Spinosaurus is the first dinosaur known to have been adapted to an aquatic lifestyle.

Weighing 20 tonnes and measuring 15m long, it was 2.7m longer than the largest T. rex specimen known.