Confrontation between male Styracosaurus dinosaurs.

ACTION • AGGRESSION • ANGER • ANIMAL BEHAVIOR • ANIMAL BODY • ANIMAL HEAD • ANIMAL THEMES • ANIMAL • ANIMALS IN THE WILD • ARTWORK • ATTACK • BATTLE • BEAK • BEAST • CENTROSAURINAE • CERAPOD • CERAPODA • CERATOPSIA • CERATOPSID • CHALLENGE • COLOR IMAGE • CONCEPT • CONFLICT • CONFRONTATION • CREATURE • CRETACEOUS • DANGER • DAY • DEFENDING • DIGITALLY GENERATED IMAGE • DINOSAUR • DINOSAURS • ENEMY • ENVIRONMENT • EVOLUTION • EXISTENCE • EXTINCT • FACE TO FACE • FACE-TO-FACE • FACING • FEAR • FIERCE • FIGHTING • FRILL • FURY • GRASS • GROWL • HERBIVORE • HOOFED MAMMALS • HORIZONTAL • HORNED • ILLUSTRATION • LANDSCAPE • LANDSCAPES • LARGE • LATERAL VIEW • LUNA • MALE ANIMAL • MEGAFAUNA • MENACE • MESOZOIC ERA • MOON • MOUTH OPEN • NATURAL HISTORY • NATURAL SCIENCES • NATURE STUDY • NATURE • NO PEOPLE • OPEN MOUTH • OPEN-MOUTHED • ORNITHISCHIA • OUTDOOR • OUTDOORS • OUTSIDE • PALAEONTOLOGY • PALAEOZOOLOGY • PALEOBIOLOGY • PALEONTOLOGY • PALEOZOOLOGY • PAST • PERIL • POWERFUL • PREHISTORIC ERA • PRIMEVAL • PRIMITIVE • PRIMORDIAL • QUADRUPED • REARING UP • REPTIL • REPTILE • REPTILES • RIVAL • ROAMING • ROARING • SCIENCE • SCIENCE: EVOLUTION • SIDE VIEW • SPECIES • SPIKED • STYRACOSAURUS ALBERTENSIS • STYRACOSAURUS • SURVIVAL • THREAT • THREE ANIMALS • TOUGHNESS • VERTEBRATE • VIOLENCE • VIOLENCIA • WILDERNESS • WILDLIFE • WITHOUT PEOPLE • ZOOLOGY