New discovery: Dinosaurs are not cold-blooded!

Dinosaurs are not cold-blooded animals as we previously thought, but they have the same body temperature as birds and mammals today, according to a study by the California Institute of Technology (USA).

According to the Daily Mail , scientists at the California Institute of Technology (USA) discovered that dinosaurs are warm-blooded animals after conducting studies on fossil teeth of dinosaurs. Previously, dinosaurs were thought to be cold-blooded animals like other reptile species, including lizards, snakes, crocodiles, .

The analysis of fossil teeth ( left ) of dinosaurs can give
see their body temperature. (Photo AP, Alamy).

Cold blood makes reptiles lacking the ability to keep body temperature stable when the ambient temperature changes. They often become slow when the weather is cold and more dynamic when the weather is warm.

The team analyzed 11 teeth of Brachiosaurus and Camarasaurus - living more than 150 million years ago. By measuring the concentration of carbon and oxygen isotopes in the tooth, they can determine the body temperature of dinosaurs with accuracy ranging from 1 to 2 degrees Celsius.

The analysis showed that the Brachiosaurus has a body size of about 38.2 degrees Celsius, while the Camarasaurus body temperature is 35.7 degrees Celsius . Scientists surmise, the body temperature of these two dinosaurs may in fact be higher than the results of the analysis.

The teeth of the Camarasaurus dinosaur

" Teeth can be considered thermometers to measure the temperature of animals that lived 150 million years ago ," said Dr. Robert Eagle, head of the study. ' Previously, this method was used to measure the temperature of dinosaurs, but we studied it from a completely different perspective .'

Currently, scientists are conducting temperature measurements of smaller dinosaurs to better understand how this species holds heat. The team speculated that giant dinosaurs could cool the body by reducing the rate of metabolism or escaping heat through the air pockets on their bodies.