• neeravbhatt, Flickr
    12 of 12
    Next: Man is BFFs with Crocodile

    1. Crocodile (3,700 psi)

    It’s no surprise that the alligator’s close cousin tops our list. With a mind-boggling 3,700 pounds per square inch of bite force, crocodiles boast 1,200 psi more than this list’s runner up, and more than twice as much chomping power than the third-place hippopotamus. When it comes to biting, crocodiles simply leave all their competition in the dust. Saltwater crocodiles are the largest reptiles on the planet, with some specimens measuring more than 20 feet long and weighing more than a ton. Relative to their enormous size, it’s no wonder their large and powerful jaw muscles make crocodiles’ snouts among the world’s deadliest traps. And while they’re typically lazy and able to survive for long periods without food, crocs can and will apply their formidable choppers to just about any prey that is ill-fated enough to enter their territory, including cows, water buffalo, sharks and, yes, humans. Need an example of how quickly and easily a hungry croc can finish you off? In 2009, a crocodile gruesomely took a human head clean off with a snap of its jaws.