The strength of a human bite is around 162 pounds per square inch or 162 PSI.
Human skulls, far from being weak, are quite tough and unusually efficient for their size.
Our second molars can exert a bite force between 1,100 and 1,300 Newtons, beating the orang-utan, gibbon and Australopithecus but lagging behind the gorilla, chimp and Paranthropus.
An animal that has the strongest bite force is the Salt Water Crocodile which is thousands more lbs powerful than a human bite force.
At 4,000 pounds per square inch, the saltwater crocodile of northern Africa has the strongest bite of any living animal, powerful enough to snag a zebra or antelope by the hoof and drag it kicking and bleating into the water.
The Great White Shark also has a bite force of 4,000 PSI.
The great white shark can deliver a maximum bite force of 4000 PSI (18, 220 N) in one go.
Isn't that a powerful bite to watch out for?
The only animal species that comes close to this is the saltwater crocodile.
The saltwater crocodile is known to have an estimated bite force of 3700 psi (16,414 N ).