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Tyrannosaurus Air Conditioner

06.09.2019

Scientists from the United States said that in the skull of the tyrannosaurus rex there were two holes that served as a kind of "air conditioner". They were needed because the giant and active pangolin quickly overheated.

Previously, it was thought that these holes contained muscle tissue, but now researchers have concluded that they were actually covered with a network of blood vessels. It is known that large animals need additional cooling mechanisms, since in the heat their body can quickly overheat.

During the study, scientists used thermal imagers to observe alligators at a farm at the Florida Zoo. It turned out that in the alligator's skull there are holes filled with blood vessels.

"The body temperature of an alligator depends on the environment. We noticed that when it got colder and the alligators were trying to warm up, the thermal imagers recorded large heat spots in the upper part of their skull, which indicate an increase in body temperature. However, as the day became warmer, these spots darkened, as if they were turned off to reduce the temperature, "said study co-author Kent Vliet.

After studying the fossilized remains and three-dimensional models of the skull of tyrannosaurs, scientists found that they had similar openings. It was previously thought that these holes contained muscle tissue, but Holliday says that "it is strange to see muscles that rise up from the jaw, then turn 90 degrees and continue under the cranial vault."

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