Medium close up low angle shot of an Eastern Hognose snake, Heterodon platirhinos, as it reacts to a perceived threat by flattening its neck and opening its mouth, then flicks its tongue

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