Ключевые слова: animal, arizona, background, biology, cerastes, closeup, crotalus, danger, dangerous, deadly, desert, diamond, diamondback, eastern, herpetology, isolated, lethal, macro, nature, pit, poison, poisonous, portrait, rattle, rattlesnake, rattlesnakes, reptile, scales, scutulatus, sidewinder, skin, snake, snakes, strike, tongue, venom, venomous, viper, western, wild, wildlife,