Common Snapping Turtle

Snapping turtles derive their common English name from their violent antipredator behavior which involves snapping at an adversary while quickly lunging forward and extending its neck, potentially delivering a painful, damaging wound. This vigorous defense is exhibited out of water and does not seem to be used while submerged. These turtles also are capable of aggression toward conspecifics.
Chelydra serpentina is commonly harvested for commercial exploitation, especially for food.