Penguins are a kind of bird, and one of the important characteristics of birds is homeothermy. Penguins are no exception, they are also warm-blooded animals. Constant temperature refers to the stability of body temperature, no matter how the temperature changes in the external environment, the body temperature of warm-blooded animals will not change, penguins are the same. Although penguins live in very cold polar regions, they have evolved measures to keep warm. For example, as birds, penguins also have feathers, and their feathers also have the function of heat preservation. In addition, there is a thick layer of fat under the penguin's skin, which also has a good thermal effect.
With these body structures, penguins can keep their body temperature constant in the cold environment. Living in this environment, penguins have very low levels of metabolic activity, which is one of the reasons why they can survive normally.
As mentioned above, the body temperature of penguins is constant. Penguins have feathers and layers of fat to keep them warm, keeping their body temperature in a stable range. Generally speaking, penguins can maintain a body temperature of about 37 degrees. In fact, most birds and mammals are thermostats, they can stabilize their body temperature at about 37 degrees, penguins as a kind of birds, also in line with this characteristic. However, some male penguins have higher foot temperatures. Sometimes, they hatch their newborn eggs on their feet, because the temperature on their feet is higher.
