An Eastern Hognose snake, Heterodon platirhinos, a North American snake, reacting to a perceived threat raises its head, flattens its neck, and puffs up its body to make itself appear larger

nature wildlife animal wild predator natural carnivore fauna outdoor eastern hognose snake heterodon platirhinos snake serpent reptile vertebrate coiled reptilian coldblooded defensive warning instinct low angle view north america united states dayligiht protective scared frightened bluffing crawling moving closeup alarmed alert instinctive caution afraid