Ключевые слова: adder, animal, background, biology, bone, bones, closeup, cobra, conservation, danger, dead, detail, drug, education, endangered, environment, evolution, exhibit, exhibition, fossil, head, learning, museum, nature, pattern, poisonous, predator, python, reptile, respiration, ribs, scales, scary, science, scientific, serpent, serum, show, skeleton, skull, snake, species, spooky, structure, surface, teeth, venom, viper, white, wildlife,