Ключевые слова: animal, animalia, biology, cerastes, crotalus, danger, dangerous, diamond back, diamondback, fangs, foot, forked tongue, herp, herpetology, nature, outdoor, pit viper, pitviper, poison, poisonous, predator, rattle, rattle snake, rattle snakes, rattles, rattlesnake, rattlesnakes, reptile, reptiles, scales, scaly, scary, serpent, serpents, shoe, side winder, sidewinder, sidewinder rattlesnake, venom, venomous, viper, wild, wild animals, wildlife, zoo, zoology,