Event Brief
Study finds T. rex had human-like body temperature
By The BriefBrief · Sources (3)
Filed: Sep 16, 2026 at 3:08 PM ET
UPDATED Sep 16, 2026 at 10:04 PM ET
Summary: A UCLA-led study using isotopic signatures from Tyrannosaurus rex tooth enamel concludes that T. rex likely had a body temperature similar to humans. The research, published in Science Advances, analyzed teeth from “Thomas the T. rex,” a 66-million-year-old specimen provided by the Natural History Museum of Los Angeles County.
WHO: UCLA researchers, including Robert Eagle; Natural History Museum of Los Angeles County
WHAT: Researchers measured isotopic signatures on T. rex tooth enamel to infer a human-like body temperature.
WHEN: Sep 16, 2026
WHERE: USA
WHY: The study used durable tooth enamel to resist chemical alteration and infer body temperature from isotopic signatures.
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