T. Rex’s Secret Body Temperature Revealed | Irvine News

Scientists cracked the code on T. rex’s body temperature using fossilized teeth, revealing a core heat of 97°F — nearly identical to ours. This breakthrough settles long debates about whether dinosaurs were cold- or warm-blooded, showing T. rex likely had a stable, mammal-like metabolism that let it dominate diverse prehistoric landscapes. While some experts thought it might’ve been hotter like birds, this finding points toward a more familiar physiology. Now researchers plan to apply this tooth-analysis technique to other dinosaurs, unlocking new insights into their biology and how they thrived across ancient ecosystems.

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Sources:
https://www.ocregister.com/2026/09/16/t-rex-body-temperature/

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