The strength of an animal is not only measured by how mighty it is or by its muscles: another fundamental factor is the power and pressure of its bite.
It is not only the teeth or jaws that determine the power of a bite, but also the closing jerk. To make the bite estimate, scholars used the occluder, and then carried out simulations, certainly safer, on the computer, based on studies and knowledge of the physical structures of the animals taken into consideration.
Here is an estimate of the most powerful bites in nature: the force is calculated in psi, i.e. the pressure that occurs when an area of 1 square inch is subjected to 1 pound of force.