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Were dinosaurs warm-blooded or cold-blooded?
Whether dinosaurs were warm-blooded animals like modern mammals and birds, or cold-blooded animals like modern reptiles, has been inconclusive for decades. Recently, American scientists have discovered a new way to study the metabolic rate of dinosaurs, that is, to use clues in dinosaur bones to find out the cries of individual animals in the last hour of life.
Suction, thus confirming that most dinosaurs were warm-blooded animals. The new method does not consider minerals in bones or the growth rate of dinosaurs, but instead focuses on the use of oxygen, one of the most fundamental hallmarks of metabolism. When animals breathe, they react with proteins, sugars, and lipids.
Byproduct. This molecular "waste" is very stable and insoluble in water, so it can be preserved during the petrochemical process. It can record how much oxygen the dinosaurs inhaled, and then infer the metabolic rate of the dinosaurs. The scientists analyzed the femurs of 55 different animals, including dinosaurs and their flying cousin pterosaurs, a marine distant relative of plesiosaurs, and modern birds, mammals and lizards. The results were average in the metabolic rate of dinosaurs.
It is very high. The metabolic rate of sauropods such as Triceratops and Stegosaurus was comparable to that of modern cold-blooded animals; Birds colliding with dinosaurs, such as raptors, Tyrannosaurus rex and other theropods, sauropods, brachiosaurus and other giant long-necked herbivores, are warm-blooded animals, even warm-blooded animals.
Let the flower of morality blossom ingenuity
