Close Up shot of a hungry green snake yawning in the tropical rainforest at the Academy Of Sciences San Francisco California, serpent stretching its mouth preparing to eat

green snake snake tropical rainforest rainforest academy of sciences san francisco academy of sciences terrarium reptile snake yawning reptile yawning animal nature wildlife poisonous green viper closeup tropical tongue head poison natural forest environment tree fauna eye skin exotic jungle water wild plant leaf beautiful amazon flora beauty wet tropics plants motion