One of the largest freshwater turtles is the alligator snapping turtle. Found primarily in the southeastern United States, these massive turtles have been known to weigh close to 250 pounds. They are carnivorous, and while their diet is primarily fish, they have been known to eat almost anything else they can find in the water—even in a few cases small alligators! The alligator snapping turtle relies on a uniquely deceitful method of foraging for fish.