Decipher the greatness of cold native animals

Cold-land animals have a larger weight and size than other animals that live in other climates.

For animals that live in cold climates on high altitudes, they often have a large body weight and smaller faces.

Apparently, their faces are inversely proportional to body weight, which helps to reduce heat evaporation and are explained by scientists through Bergmann's rule. (The content of this rule is that the higher the ambient temperature, the smaller the size of the animal. Therefore, species that live in the northern latitudes are usually larger in size than those that live in low latitudes.

There are also a number of other factors that affect the body size and weight of cold native animals. Reptile researcher Kyle Ashton of the California San Francisco Academy of Sciences said that in this area there is an abundance of food supplies, partners for larger male animals and inter-species battles are also one of the reasons why the animal body is cooler.

Cold animals have a larger body weight
animals that live in other weather areas.

"Under Bergman's rule also explains how animals deal with heat loss and heat retention in cold weather. One of the reasons their bodies are bigger is that their bodies need a lot of substance. Fat to help them keep their body temperature and survive through the harsh winter , " said Ashton.

According to researchers at the University of Houston, the source of food from cold-region crops is lighter, but the content of nutrients is higher than that of animals around the road. Equator.

While most mammals have body weights greater than other climates, birds and some reptiles such as turtles, lizards and snakes do not follow that rule. These animals go against the law and tend to be smaller in size and weight in cold and larger areas when living in areas with warm weather, added Ashton.

Scientists are still unable to explain why these reptiles go back to Bergman's law. Mr. Ashton thinks the turtles are smaller in cold weather because they can live for a few months without eating or drinking. As for lizards and snakes, some scientists believe that their size and body weight are smaller so that they can warm faster when living in cold weather.

Reference: Livescience