Defensive behavior observed in a juvenile Eastern Copperhead (Agkistrodon contortrix). Although rattlesnake species are most famous for it, a variety of venomous and non-venomous snake species will vibrate their tails in the air or against substrate whenever they are approached by a potential predator to help in fending off said threat. This is usually paired with a tightened posture so that the snake can be ready to strike and defend itself if necessary. Turn up your volume and you'll be able t