Ключевые слова: adder, aesculapian, america, animal, attack, autumn, black, boa, canada, carnivore, close, closeup, crawl, dangerous, devour, devouring, eat, environment, eyes, face, forest, gray, head, hunt, hunter, leaves, look, maple, mouse, natural, nature, needles, north, outdoor, pine, prey, reptile, serpent, snake, swallow, tail, up, venom, venomous, viper, whole, wild, wildlife, yellow,