Tuesday, June 30, 2026
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Searching for dinosaur secrets in crocodile bones

Until now, estimating how old a dinosaur was when it died has been a fairly simple process: Count up the growth rings in the fossilized bones. But new research into some of dinosaurs' living relatives, like crocodiles, suggests that this method may not always work.

Searching for dinosaur secrets in crocodile bones
Image: NPR World

Until now, estimating how old a dinosaur was when it died has been a fairly simple process: Count up the growth rings in the fossilized bones. But new research into some of dinosaurs' living relatives, like crocodiles, suggests that this method may not always work.

(Image credit: Tommy Trenchard for NPR)

Originally published at NPR World

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