Question: what are the strongest jaws?
Answer: Great white shark 4,000 PSI (281 kg/cm2) ... 
Saltwater crocodile 3,700 PSI (260 kg/cm2) ... 
American alligator 2,125 PSI (149 kg/cm2) ... 
Jaguar 1,500 PSI (105.4 kg/cm2) ... 
Hippopotamus 1,800 PSI (126.5 kg/cm2) ... 
Gorilla 1,300 PSI (91 kg/cm2) ... 
Grizzly bear 1,160 PSI (81.5 kg/cm2)