Bull Shark

Anatomy and appearance
Bull sharks are large and stout, with females being larger than males. The bull shark can be up to 81 centimetres (2.66 ft) in length at birth and grow up to 3.5 metres (11 ft) and weigh 318 kilograms (700 lb). Bull sharks are wider than other requiem sharks of comparable length, and are grey on top and white below. The second dorsal fin is smaller than the first. Per the Discovery Channel and Animal Planet program Animal Face-Off, bull sharks have a bite force of up to 567 kilograms (1,250 lb).
The bull shark's caudal fin is longer and lower than that of the larger sharks, it also has a small snout, and it lacks an interdorsal ridge.