#1
Saltwater Crocodile — 3,700 PSI
The saltwater crocodile holds the highest bite force ever directly measured in a living animal. Its jaw muscles are built for clamping down on prey and holding on, not for chewing.[1]
From crocodiles to hyenas, we measured bite force in pounds per square inch to crown the most powerful jaws in the animal kingdom.
| Rank | Animal | Bite force | Class |
|---|---|---|---|
| 1 | Saltwater Crocodile | 3,700 PSI | Reptile |
| 2 | American Alligator | 2,125 PSI | Reptile |
| 3 | Hippopotamus | 1,825 PSI | Mammal |
| 4 | Jaguar | 1,500 PSI | Mammal |
| 5 | Gorilla | 1,300 PSI | Mammal |
| 6 | Grizzly Bear | 1,160 PSI | Mammal |
| 7 | Spotted Hyena | 1,100 PSI | Mammal |
| 8 | Tiger | 1,050 PSI | Mammal |
| 9 | Lion | 650 PSI | Mammal |
| 10 | Bull Shark | 600 PSI | Fish |
No matching rows.
The saltwater crocodile holds the highest bite force ever directly measured in a living animal. Its jaw muscles are built for clamping down on prey and holding on, not for chewing.[1]
Alligators generate almost all of their bite force from a few powerful closing muscles. The muscles that open the jaw, by contrast, are weak enough to hold shut with a hand — a fact wildlife handlers rely on.[1]
Despite a mostly plant-based diet, hippos can open their mouths nearly 180 degrees and deliver a bite strong enough to bend a canoe paddle.[2]
Jaguars typically kill by biting directly through the skull of their prey — a hunting method almost unique among big cats, most of which target the throat.[2]
A gorilla's bite is powered by huge jaw muscles anchored to a bony ridge on top of the skull — visible as a pronounced crest in mature males.[2]