cottonmouth snake (agkistrodon piscivorus)

aggressive agitated angry animal attacking beautiful biology bright camouflage close closeup coloration colorful cottonmouth creepy cryptic cute danger dangerous display ecology eerie environment fang fangs field florida habitat herpetology herping herps little mad moccasin mouth natural open pattern poison poisonous pretty pupils reptile scary scenery science serene snake spooky threatening throat tranquil venom venomous vertical vibrant vivid water young zoology