''Tyrannosaurs may have looked like giant chickens''

The latest visualisation suggests that parts of Walking with Dinosaurs, the acclaimed BBC series, cannot be seen as scientifically valid. Similar criticisms might also be levelled at the Hollywood blockbuster Jurassic Park.

...

The feather revelation follows a series of discoveries in fossil beds at Liaoning in northeast China where a volcanic eruption buried many dinosaurs alive. It also cut off the oxygen that would otherwise have rotted them away.

...

The feathered finds include an early tyrannosaur, a likely ancestor of Tyrannosaurus rex, two small flying dinosaurs and five other predators. Feathers are thought to have evolved first to keep dinosaurs warm and only later as an aid to flight.