New hypothesis about dinosaurs

Dinosaurs are not cold-blooded because this will make them physically weak, a trait that is not suitable for animals that once ruled over the earth.

For decades, scientists have suggested that dinosaurs are cold-blooded, because many species are now thought to be their direct descendants, often cold-blooded reptiles like crocodiles.

New research by the University of Adelaide (Australia) overturned the hypothesis, suggesting that dinosaurs such as tyrannical dinosaurs are in fact warm-blooded like birds and mammals.

Tyrannosaurus is thought to be warm-blooded like birds and mammals - (Photo: Wikimedia Commons)

According to a report on PLoS ONE, experts analyzed that if the blood was cold, they could not afford muscles to hunt in the Middle Age, and were not enough to dominate mammals at the same time. .

The dinosaurs lived in this era, from 252 million to 66 million years ago, including tyrants, roof lizards (Stegosaurus) and Brontosaurus plant-eating dinosaurs.

Saltwater crocodiles can achieve temperatures above 30 degrees Celsius by sunbathing, and it can maintain body temperature overnight thanks to its large body and slow temperature change.

Scientists think cold blood dinosaurs can do the same thing.

However, Professor Roger Seymour proved that a 200kg crocodile could produce only 14% of muscle strength compared to an equivalent heavy mammal.

Saltwater crocodile can weigh over 1 ton, possessing about 50% muscle strength.

Therefore, ancient dinosaurs could not be cold-blooded, because they were weak and their stamina was also reduced in cold-blooded conditions.