New research seems to end a long-standing scientific debate about the mystery of dinosaurs

Scientists have argued whether dinosaurs are warm-blooded animals, such as reptiles that look similar, or warm-blooded animals for a long time. Well, there seems to be a definitive answer at last.

New to Yale University Molecular Paleontologist Jasmina Wiemann Method This allows scientists to determine the metabolic rate of dinosaurs based on fossils. This method allows investigators to effectively determine whether prehistoric creatures are warm-blooded or homeothermic.

“We have developed a new proxy that targets the by-products of aerobic respiration in molecules. Aerobic respiration involves the conversion of oxygen into chemical energy. This is a cascade of heat-releasing processes. And ultimately determines the active temperature control capacity of the animal, “Wiemann explained on Twitter. thread.

Researchers have studied the waste products that are formed when oxygen is inhaled into the body and reacts with proteins, sugars, and lipids. The amount of these products can indicate whether the animal is a warm-blooded animal or a warm-blooded animal. To investigate this, scientists analyzed the femurs of 55 different creatures, from dinosaurs to birds and lizards. Molecules are insoluble in water and are well preserved in fossils. All the researchers had to do was analyze them using infrared spectroscopy and compare the results with data from animals whose metabolism was well studied.

Paleontologists have found that the majority of dinosaurs are warm-blooded animals, with the exception of Stegosaurus, Triceratops, and Hadrosaurus, where warm-blooded animals require higher metabolism to fuel themselves. .. According to Weemann, these animals “secondarily reduce their metabolic rate to those found in modern thermoregulatory animals (ie, lizards), with seasonal migration, sunbathing, or warm climate preferences. It suggests thermoregulatory behavior such as. “

The findings undermine the theory that many animals survived mass extinction due to their high metabolism, and show that similarly highly metabolically active dinosaurs have also become extinct.

“Nevertheless, mass extinction seems to play an important role in the evolution of high metabolic rate and endotherm, which appears to be that ornithodilan, marine reptiles, and mammals have evolved endotherm after P / T. Is being considered. [Permian–Triassic extinction]”Waman said.

As climate change raises concerns around the world, scientists understand how modern extinct animals responded to previous climate crises in order to be able to plan future actions. I believe that is important. New research seems to end a long-standing scientific debate about the mystery of dinosaurs

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