Ключевые слова: aggressive, animal, animalthemes, apexpredator, baby, bird, carnivore, carnivorous, china, claws, creature, cretaceous, daspletosaurus, dinosaur, evolution, extinct, extinction, family, feather, fierce, flight, flying, lizard, longirostris, north america, organism, paleontology, prehistoric, prehistoricera, primeval, primitive, pterodactyl, pterodactylus, pterosaur, reptile, species, teeth, theropod, vertebrate, wing, young, youngster, zhenyuanopterus,