Biloxi Gulfport, MS, September 19, 2026 —

A recent scientific study analyzing fossilized Tyrannosaurus rex teeth has provided new insights into the physiology of the prehistoric predator. Researchers have determined that the average core body temperature of the T. rex was approximately 97 degrees Fahrenheit (36 degrees Celsius).

This temperature range places the T. rex alongside modern large mammals such as elephants and humans, suggesting a metabolic profile that differed from that of cold-blooded reptiles. The findings were derived from the examination of isotopes within the fossilized dental remains, a method that allows scientists to estimate body temperatures of extinct animals.

The study’s findings offer a more nuanced understanding of how T. rex, a formidable apex predator that roamed prehistoric North America, might have lived and sustained itself. Knowing its approximate body temperature can help scientists model its activity levels, growth rates, and its ecological interactions within various environments across the continent during the late Cretaceous period.

Further research may build upon these findings to explore how this internal temperature regulation influenced the T. rex’s behavior, hunting strategies, and its ability to thrive in diverse climatic conditions. The specific details of the methodology, the full list of participating institutions, and the precise timeline for the study’s publication were not immediately available.


Story summarized from the original created by Associated Press on www.wxxv25.com, see more information here.

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