JOSE ANTONIO PENAS / SCIENCE PHOTO LIBRARY JOSE ANTONIO PENAS / SCIENCE PHOTO LIBRARY
Theropod dinosaurs. Artwork comparing the sizes of various theropod dinosaurs with a human. Therapods were bipedal dinosaurs that were primarily carnivorous. They first appeared in the Late Triassic, around 230 million years ago. Theropods were the ancestors of modern birds.
Model release not required. Property release not required.