A newly described relative of Tyrannosaurus rex is the largest known feathered animal - living or extinct. The feathered meat-eating dinosaur lived about 125 million years ago and is estimated to have weighed a whopping 1,400kg as an adult.
The new species, known as Yutyrannus, has been identified from three fossils found in north-eastern China. The finds, detailed in Nature journal, challenge current theories about the evolution of T.rex and its relations.
This group of dinosaurs is known as the Tyrannosauroids.
Tyrannosaurus rex and its gigantic cousins lived until around 65 million years ago - when a huge asteroids wiped out the dinosaurs - but most of their earlier relatives are thought to have been much smaller.
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