Theropods

A Theropod is a dinosaur that walked on three toes. Theropod dinosaurs also shared several other characteristics:

• They were mostly all carnivores (meat-eaters)
• They all used their back legs for walking.
• Most walked exclusively on two legs
• They had hollow limb bones
• The humerus (upper arm bone) is less than half as long as the femur (upper leg bone)

There are a number of other, more technical characteristics, but these are the basics.

Theropods are the stars of Jurassic Park, namely because they eat meat, and (in the franchise's case) that includes humans.