Understanding evolutionary relationships.

How scientists study the rock layers that fossils are buried in.

Dinosaur bones have been found along ancient rivers and deserts.

How the dinosaur displays at AMNH are assembled.

Understanding the evolutionary history of life.

Scientists compare fossil footprints in trackways to data in living animals.

Paleontologists infer dinosaur diets from the shape of their teeth.

There are different ways to measure the brain capacity of dinosaurs.

Dinosaurs evolved from a common ancestor.

Sir Richard Owen first coined the name Dinosauria.