A pack of Deinonychus dinosaurs attack a Tenontosaurus.

AGGRESSION • ANIMAL BEHAVIOR • ANIMAL BODY • ANIMAL TAIL • ANIMAL THEMES • ANIMAL • ANIMALS HUNTING • ANIMALS IN THE WILD • APEX PREDATOR • ARTWORK • ATTACK • BATTLE • BIPED • BIRD • BIRD: BIRDS OF PREY • BIRDS OF PREY • BITING • BLEEDING • BLOOD • CARNIVORE • CHALLENGE • CLAW • CLAWS • COLOR IMAGE • COLOUR IMAGE • CONFLICT • CONFRONTATION • CONTOUR FEATHERS • CREATURE • CRETACEOUS • DANGER • DAY • DEINONYCHUS ANTIRRHOPUS • DEINONYCHUS • DIGITALLY GENERATED IMAGE • DINOSAUR • DINOSAURS • DROMAEOSAURID • ENEMY • ENVIRONMENT • EVOLUTION • EXTINCT • FEATHER • FIERCE • FIGHTING • FLESH • FOUR ANIMALS • FULL LENGTH • FULL-LENGTH • HEMMORHAGE • HEMORRHAGE • HEMORRHAGED • HEMORRHAGING • HERBIVORE • HORIZONTAL • IGUANODONT • ILLUSTRATION • ILLUSTRATIONS • KILL • KILLING • KILLS • LAKE • LARGE • LATERAL VIEW • MENACE • MESOZOIC ERA • MONSTER • MOUTH OPEN • NATURAL HISTORY • NATURAL SCIENCES • NATURE STUDY • NATURE • NO PEOPLE • ON TOP OF • OPEN MOUTH • OPEN-MOUTHED • ORNITHISCHIA • ORNITHOPOD • OUTDOOR • OUTDOORS • OUTSIDE • PALAEONTOLOGY • PALAEOZOOLOGY • PALEOBIOLOGY • PALEONTOLOGY • PALEOZOOLOGY • PAST • PERIL • POWERFUL • PREDATOR • PREHISTORIC ERA • PREY • PRIMEVAL • PRIMITIVE • PRIMORDIAL • QUADRUPED • RAPTOR • REPTIL • REPTILE • REPTILES • RIVAL • SANGUINE • SAURISCHIA • SAUROPSID • SCIENCE: EVOLUTION • SHALLOW • SIDE VIEW • SPECIES • STREAM • STRENGTH • STRUGGLE • SURVIVAL • TALON • TENONTOSAURUS TILLETTI • TENONTOSAURUS • TERROR • THEROPOD • THREAT • TOUGHNESS • VERTEBRATE • VICIOUS • VICTIM • VICTIMS • VIOLENCE • VIOLENCIA • WATER • WILDERNESS • WILDLIFE • WITHOUT PEOPLE • ZOOLOGY