Tyrannosaurus rex surprising a herd of Gallimimus dinosaurs.

ACTION • AGGRESSION • AGILITY • ANIMAL BEHAVIOR • ANIMAL THEMES • ANIMAL • ANIMALS HUNTING • ANIMALS IN THE WILD • APEX PREDATOR • ARTWORK • ATTACK • BEAST • BIPED • CARNIVORE • CHALLENGE • CHASING • COELUROSAURIA • COLOR IMAGE • COLOUR IMAGE • CONFLICT • CONFRONTATION • CREATURE • CRETACEOUS • DANGER • DAY • DIGITALLY GENERATED IMAGE • DINOSAUR • DINOSAURS • ENEMY • ENVIRONMENT • EVOLUTION • EXTINCT • FEAR • FIERCE • FIGHTING • FOUR ANIMALS • GALLIMIMUS BULLATUS • GALLIMIMUS • GIGANTIC • HERBIVORE • HORIZONTAL • ILLUSTRATION • ILLUSTRATIONS • JURASSIC • LANDSCAPE • LANDSCAPES • LARGE • MAASTRICHTIAN • MENACE • MESOZOIC ERA • NATURAL HISTORY • NATURAL SCIENCES • NATURE STUDY • NATURE • NO PEOPLE • OMNIVORE • ORNITHOMIMID • ORNITHOMIMOSAUR • OSTRICH • OUTDOOR • OUTDOORS • OUTSIDE • PALAEONTOLOGY • PALAEOZOOLOGY • PALEOBIOLOGY • PALEONTOLOGY • PALEOZOOLOGY • PAST • PERIL • POWERFUL • PREDATOR • PREHISTORIC ERA • PRIMEVAL • PRIMITIVE • REPTIL • REPTILE • REPTILES • RIVAL • ROCK • SAURISCHIA • SCENIC • SCIENCE • SCIENCE: EVOLUTION • SPECIES • SURVIVAL • TAG (GAME) • THEROPOD • THREAT • THREE DIMENSIONAL • TOUGHNESS • TYRANNOSAURID • TYRANNOSAURUS • VERTEBRATE • VIOLENCE • VIOLENCIA • VULNERABILITY • WILDERNESS • WILDLIFE • WITHOUT PEOPLE • ZOOLOGY