How do animals react to heat and cold?

Warm-blooded and cold-blooded animals react differently to changes in ambient temperature. Humans and warm-blooded animals try to maintain their optimal body temperature – this process is called thermoregulation. There are three ways of thermoregulation: biochemical (a change in the intensity of oxidative processes, for example, muscle tremor with severe hypothermia increases the release of heat), a change in the intensity of blood circulation (at high ambient temperatures, blood vessels expand, a greater flow of blood gives off more heat and vice versa), a change in the intensity of sweating … Thermoregulation occurs simultaneously in all three ways, which gives resistance to temperature extremes. In cold-blooded animals, the body temperature corresponds to the ambient temperature.