Slow grower: Tyrannosaurus rex didn’t reach full size until age 40

00:00 - 14 Jan 2026

www.science.org

Famed dino likely spent much of its life competing for food against smaller predators

Article info:

Full Article URL: https://www.science.org/content/article/slow-grower-tyrannosaurus-rex-didn-t-reach-full-size-until-age-40
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Science.org: https://www.science.org
Publication date: 2026-01-14 00:00:00
Last retrieval: 2026-01-14 22:46:11.285522