Living: The Deinonychus’ hunted down large animals in groups, but sometimes they also hunted alone, chasing smaller animals.

By Joe Tucciarone

There has been found a group of four Deinonychus’ and a much larger Tenontosaurus, which indicates, that they actually did hunt together. There maybe have been several more Deinonychus’,

By Shiraishi Mineo

but the Tenontosaurus had killed them with its giant tail. But in the meantime the rest of the Deinonychus’ had caused the Tenontosaurus great wounds, bleeding it to death.

Tail: Its tail had a sinew, which made the tail completely stiff, except where the tail was attached to the body.

Feet: Just like the Velociraptor, the Deinonychus had a gigantic claw on the outer toe on both feet.

By Josep Fernandez Felgueres

It could turn 180 degrees, while standing on the other two toes. Besides the three toes, it also had a thumb on the back of the foot.

Skeleton: The skull had a long row of sharp teeth, was very light, and had big holes for the eyes and jaw-muscles. When it struck it arms, the hand-palms pointed downwards.