Alligator snapping turtles are one of the largest freshwater turtles and are from the eastern half of the United States and some parts of Central and North America. They spend most of their time in the water and even hibernate in the water for months. They are omnivores, eating fish, water snails, fish, and plants. Their tongues look like a little pink worm and they use it as a fishing lure. When fish come close to eat this "worm," the turtle closes its mouth quickly and catches the fish.

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I found a nice video of the alligator snapper turtle, please watch it here