Photos: Dinosaurs and Their Ancestors

New research says dinosaurs shared Earth for millions of years with ancestors.

Dinosaurs, Ancestors Share the Land

Dinosaurs
Dinosaurs
Dinosaurs
Dinosaurs
Dinosaurs
Dinosaurs
Dinosaurs
Dinosaurs
Dinosaurs
Dinosaurs
Dinosaurs
Dinosaurs
Early dinosaur leg bone (femur) getting excavated at the Hayden Quarry. (Randal Irmis/UC Berkeley)
Slideshows
1 2 3 4 5
ABC News on Facebook