Alligator Snapping Turtle
A huge aquatic species with a noticeably large head (as compared to other species of turtles). The upper shell has 3 prominent ridges—1 along the center line and 1 on either side. The large head terminates in a sharp, strongly hooked beak. The tail is long and muscular. Skin on the head, neck, and forelimbs has a number of fleshy projections or tubercles. Adults have dark brown heads, limbs, and shells; the skin on the neck and other areas may be yellowish brown.