A 66-million-year-old tooth reveals T. rex was nearly as warm as a human

NewsData newsroom brief · 6d ago · 1 min read · via sciencedaily.com

Chemical clues preserved inside fossilized T. rex teeth reveal that the dinosaur maintained a body temperature of about 97 degrees Fahrenheit, almost identical to humans. The finding provides direct evidence that the giant predator was warm-blooded, helping explain how it stayed

The discovery of a 66-million-year-old T. rex tooth with preserved chemical clues has provided significant insights into the dinosaur's thermoregulation. The finding suggests that T. rex maintained a body temperature of around 97 degrees Fahrenheit, remarkably close to that of humans. This revelation has major implications for our understanding of T. rex physiology and its place among other dinosaurs.


This study contributes to a growing body of evidence that many dinosaurs, including T. rex, were endothermic, or warm-blooded. The ability to regulate body temperature would have given T. rex a significant advantage in terms of activity level and geographic range, allowing it to thrive in a variety of environments. The use of chemical analysis on fossilized teeth is a powerful tool for paleontologists, offering a new window into the biology of ancient creatures.


As researchers continue to explore the biology of T. rex and other dinosaurs, it's likely that we'll see further refinements to our understanding of these fascinating creatures. The next step will be to apply this technique to other dinosaur species, to see if they too were warm-blooded. Additionally, scientists will likely investigate how T. rex's thermoregulation abilities influenced its behavior, such as its hunting patterns and social interactions, which will provide a more comprehensive picture of life as a giant predator.

Originally reported by sciencedaily.com. NewsData adds analysis for science & discovery readers.

Originally reported by sciencedaily.com. NewsData curates and briefs the science & discovery stories that matter. Our editorial policy →
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