T. rex took 40 years to reach full size, study finds

Tyrannosaurus rex may have taken far longer to grow up than scientists once thought....

Early report Major update Updated Mar 5, 2026, 8:10 PM UTC

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Early report surfaced from ScienceDaily 3h ago.

First seen Mar 5, 2026, 8:10 PM UTC Latest source Mar 5, 2026, 8:10 PM UTC

Update 1 3h ago

ScienceDaily •published Mar 5, 2026, 8:10 PM UTC •fetched Mar 5, 2026, 9:05 PM UTC