Where does this come from, and can I check it?

Loose teeth are swapped for new ones from a reserve battery in the jaw. The figure is taken from Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

Is this really a animals fact?

Yes. It sits on the Animals shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

What else can I read about it?

The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

Crocodiles replace every tooth in their jaws

Loose teeth are swapped for new ones from a reserve battery in the jaw Each tooth sits in a socket with a replacement growing behind it, and a crocodile may cycle through thousands in a lifetime. The replacement pattern is shared with dinosaurs, which is one reason the lineage lasted so long. Teeth that break are replaced within weeks. It sits in Mondo's animals collection, one of 200 facts that each trace back to the reference below.

Where this comes from

Britannica

Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.

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Nature & Animals trivia

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A beaver's front teeth sharpen themselvesSofter dentine wears back faster than the hard enamel in front The narwhal tusk is actually an overgrown canine toothA narwhal spiral tusk contains millions of sensitive nerve endings.Beaver front teeth are orange because they contain ironIron incorporated into beaver tooth enamel protects against wear from wood.The Gila monster is a venomous lizardVenom flows along grooved teeth rather than through a fang Komodo dragons kill prey using potent venom glandsKomodo dragon bite delivers anticoagulants that prevent blood clotting.Chameleons can move their eyes independently of each otherA chameleon can observe two different targets simultaneously in 360 degrees.

Tags: reptiles, teeth, crocodiles

Crocodiles replace every tooth in their jaws: the short answers

Where does this come from, and can I check it?: Loose teeth are swapped for new ones from a reserve battery in the jaw. The figure is taken from Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a animals fact?: Yes. It sits on the Animals shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.