Crocodile teeth jaw

The crocodile jaw reveals dozens of conical teeth adapted for gripping prey in water.

About this subject

Crocodile dentition is highly specialized for capturing and holding prey, especially aquatic animals. Unlike mammals, their teeth are homodont (all similar) and conical. An adult crocodile has 60 to 80 teeth, which fit into sockets in the jaw and upper jaw. When a tooth breaks or falls out, another grows underneath in a continuous replacement cycle that can occur up to 50 times over a lifetime.

The crocodile bite is remarkable: closing force exceeds 3,700 psi (pounds per square inch), one of the most powerful in the animal kingdom. This force comes from massive adductor muscles, but the muscles to open the mouth are weak, allowing humans to hold them shut easily. The skull structure is elongated and robust, with joints that absorb impact during hunting.

Crocodilians (crocodiles, alligators, and gharials) have existed for over 200 million years. Their jaws and teeth evolved to grab and drag prey into water, where they drown. Unlike terrestrial predators, they do not chew: they swallow large chunks or whole carcasses after tearing them apart. The position of eyes and nostrils on top of the head allows them to remain nearly submerged, with only the upper jaw and teeth exposed.

Frequently Asked Questions

How many teeth does a crocodile have?

An adult crocodile has between 60 and 80 conical teeth, but the number varies by species and size.

Do crocodiles replace their teeth?

Yes, crocodiles replace teeth continuously throughout life, potentially up to 50 replacement cycles.

How strong is a crocodile's bite?

A crocodile's bite can exceed 3,700 psi, making it one of the strongest among all living animals.