Why doesn't the temperature of thermometer increase with the increase of temperature?

Humans are warm-blooded animals, also called warm-blooded animals. Animals whose body temperature does not change with the temperature of the external environment and always remains relatively stable are called warm-blooded animals. Such as most birds and mammals.

Animals have a perfect thermoregulation mechanism, which can keep their body temperature relatively stable when the ambient temperature changes. Such animals are called warm-blooded animals or endothermic animals. For example, the body temperature of birds and mammals can remain relatively stable under normal circumstances, with the body temperature of birds ranging from 40.5℃ to 42℃ and that of mammals ranging from 37℃ to 40℃.

Method for regulating body temperature of warm-blooded animals

When the weather is cold

When the weather is cold, the blood vessels in the skin of warm-blooded animals will contract, thus reducing the amount of blood flowing to the skin and reducing the loss of body heat. At the same time, when it is cold, it has a better appetite and can absorb energy; When it is too cold, it will make some animals' muscles tremble and increase their body heat.

When the weather is hot

After hot weather or exercise, the blood vessels of the skin will expand, so that a large amount of blood will flow into the skin surface, which can promote the body heat divergence; At the same time, heat can cause loss of appetite, slow activity and reduce the generation of body heat. In addition, there are sweat glands in the skin, and sweat evaporates, which can also dissipate some body heat.

Warm-blooded animals are superior to warm-blooded animals and can reduce their dependence on the environment.