Study finds T. rex body temperature similar to modern elephants

Study finds T. rex body temperature similar to modern elephants

Researchers at the University of California, Los Angeles and the Natural History Museum of Los Angeles County reported that analysis of fossilized T. rex teeth indicated an average body temperature of about 97 °F (36 °C), comparable to modern humans and elephants. Earlier reports from the same team, described in an Ars Technica article, noted that clumped isotope thermometry on three teeth yielded a similar temperature estimate, higher than that of contemporary crocodilians.

A Yahoo piece later highlighted the findings, emphasizing that the warm-blooded interpretation supports the view of T. rex as an active predator.

Acteurs

Robert Eagle Aradhna Tripati Thomas Holtz Jr. University of California, Los Angeles Natural History Museum of Los Angeles County Science Advances

Lieux

Natural History Museum of Los Angeles County University of California, Los Angeles (UCLA) Alaska, United States Mexico North America

Articles

20 septembre 2026
1 au total
T. rex teeth indicate it ran as warm as an elephant
T. rex teeth indicate it ran as warm as an elephant

Ars Technica • 20 sept. 09h00

Researchers used clumped isotope thermometry on three T. rex teeth and found an average body temperature of about 36 °C, comparable to large mammals and higher than contemporary crocodilians, indicating a likely endothermic physiology.

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18 septembre 2026
1 au total
Humans Have Something in Common With T. Rex
Humans Have Something in Common With T. Rex

Newser • 18 sept. 17h34

Analysis of fossilized teeth suggests the extinct predator maintained an average body temperature near 97 degrees Fahrenheit, comparable to modern humans and elephants.

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17 septembre 2026
2 au total
The T. rex had a body temperature similar humans, study finds
The T. rex had a body temperature similar humans, study finds

New York Post • 17 sept. 20h07

Analysis of enamel from three T. rex teeth suggests the predator maintained an average core temperature of about 97 degrees Fahrenheit, comparable to modern mammals.

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Scientists Discover T. Rex Blood Was As Hot As Human Blood, Suggesting They Were Fast-Running Predators
Scientists Discover T. Rex Blood Was As Hot As Human Blood, Suggesting They Were Fast-Running Predators

Yahoo • 17 sept. 16h46

Using refined isotope analysis of tooth enamel, researchers determined that T. rex likely maintained a body temperature similar to modern mammals, supporting the view that it was a warm-blooded, active predator.

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16 septembre 2026
2 au total
Fossil tooth analysis confirms Tyrannosaurus rex was warm-blooded
Fossil tooth analysis confirms Tyrannosaurus rex was warm-blooded

KSL News • 16 sept. 23h50

Analysis of fossil tooth enamel suggests the late Cretaceous predator maintained a body temperature similar to modern humans, supporting the view that it was endothermic.

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Tooth analysis confirms T. rex was warm-blooded
Tooth analysis confirms T. rex was warm-blooded

CNN • 16 sept. 18h48

Analysis of fossil teeth suggests the iconic predator maintained a body temperature similar to modern warm-blooded animals, supporting the view that it was an active, endothermic species.

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