Deinonychus was a member of the raptor family
Deinonychus (terrible claw)
3 metres
1.5 metres
75 - 80 kgs
Fossils have been found in the western part of modern
day North America
other animals
early Cretaceous (over 100 million years ago)
Mesozoic Era
Triassic Period Jurassic Period Cretaceous Period
Early - Middle Late Early Middle Late Early Middle Late
248 227 206 180 154 144 127 89 65

Deinonychus was a bipedal carnivorous dinosaur that lived about 100 million years ago during the early part of the Cretaceous period. It has been suggested that they hunted in packs, which would have required a significant amount of intelligence. Pack behaviour is associated with small family groups, which indicates they looked after their eggs and raised their young for a short period after hatching, much the same as modern birds do. This type of dinosaur is an ancient relative of birds and may even have had feathers.

Deinonychus was an agile killer dinosaur related to the raptors

There's a killer on the loose. Deinonychus emerges from the undergrowth looking like it needs some TLC; not the sort of occupation for the faint hearted!

A sickle claw on each foot for creating puncture wounds
Deinonychus had retractable claws on each foot
Large eyes, long talons, high speed and maneuverability would have made this creature extremely deadly; and in addition it had two large claws, one on each foot, which it could retract whilst running. It is thought that these claws were used to puncture blood vessels in its prey so that they bled to death.
It is uncertain what colour the dinosaurs were. By comparing them with modern animals we can speculate that predators like Deinonychus were camouflaged to blend in with their surroundings.