Stock Photo - Head of Tarbosaurus, a dinosaur closely related to Tyrannosaurus. Tarbosauri grew to height of 10-12 m and weight of more than a ton. Country of Origin: Mongolia. Date/Period: Late Cretaceous period, 70-65 million years ago. Size: H= 8.2m Credit Line: Werner Forman Archive/ Natural History Museum Ulaan Bataar

Stock Photo: Head of Tarbosaurus, a dinosaur closely related to Tyrannosaurus. Tarbosauri grew to height of 10-12 m and weight of more than a ton.