An Euoplocephalus hits T-Rex's foot by its mace like tail in self-defense.

AGGRESSION • ANGER • ANIMAL BEHAVIOR • ANIMAL FOOT • ANIMAL LEGS • ANIMAL MOUTH • ANIMAL TAIL • ANIMAL TEETH • ANIMAL THEMES • ANIMAL • ANIMALS HUNTING • ANIMALS IN THE WILD • ANKYLOSAUR • ANKYLOSAURID • APEX PREDATOR • ARMORED DINOSAURS • ARTWORK • ATTACK • BATTLE • BEATING • BIPED • BLEEDING • BLOOD • BUMPY • CARNIVORE • CHALLENGE • COELUROSAURIA • COLOR IMAGE • COLOUR IMAGE • CONFLICT • CONFRONTATION • CRETACEOUS • DANGER • DAY • DEFENDING • DETAIL • DIGITALLY GENERATED IMAGE • DINOSAUR • DINOSAURS • ENEMY • EUOPLOCEPHALUS TUTUS • EVOLUTION • EXISTENCE • EXOSKELETON • EXTINCT • FEAR • FIERCE • FIGHTING • FLESH • FRONT VIEW • FRUSTRATION • FULL LENGTH • FURY • GROWL • HEMMORHAGE • HEMORRHAGE • HEMORRHAGED • HEMORRHAGING • HERBIVORE • HISSING • HIT • HITTING • HORIZONTAL • HORNED • ILLUSTRATION • ILLUSTRATIONS • MEDIUM GROUP OF ANIMALS • MENACE • MESOZOIC ERA • MOTION • MOUTH OPEN • NO PEOPLE • ON THE MOVE • OPEN MOUTH • OPEN-MOUTHED • OSTEODERM • OUTDOOR • OUTDOORS • OUTSIDE • PAIN • PALAEONTOLOGY • PALAEOZOOLOGY • PALEOART • PALEOBIOLOGY • PALEONTOLOGY • PALEOZOOLOGY • PAST • PERIL • POWERFUL • PREDATOR • PREHISTORIC ERA • PREY • PRIMEVAL • PRIMITIVE • PROTECTION • PUNCH • RIVAL • ROARING • SANGUINE • SAUROPSID • SCIENCE • SCIENCE: EVOLUTION • SCUTE • SNARLING • SPECIES • SPIKED • STRENGTH • STRIKING • STRUGGLE • SURVIVAL • TERROR • THEROPOD • THREAT • THREE DIMENSIONAL • TOUGHNESS • TYRANNOSAURUS • VICIOUS • VICTIM • VICTIMS • VIOLENCE • VIOLENCIA • WILDERNESS • WILDLIFE • WITHOUT PEOPLE • ZOOLOGY