? There are many kinds of animals. When classifying them, we can divide them into warm-blooded animals or poikilothermic animals according to the characteristics of body temperature changes. Among them, warm-blooded animals refer to animals with relatively perfect thermoregulation mechanism, even if the ambient temperature changes greatly, their body temperature will not change. The warm-blooded animals are generally higher animals, the most typical of which are mammals and birds.
In terms of classification, dolphins belong to the class Mammalia and are also mammals. Like other mammals, dolphins are warm-blooded and have a constant body temperature. Whether the water temperature is low or high, the dolphin's body temperature can be maintained in a relatively stable range. Although their skin may be cool to the touch, their important internal organs and brains are thermostatic, which is a very typical warm-blooded animal.
? As mentioned above, the dolphin belongs to the class Mammalia, so it is also a mammal. Mammals are relatively advanced animals with complex body structures, as are dolphins, which are composed of many advanced structures. There are many kinds of mammals, which are very diverse, but there are still some common characteristics that all mammals have. Breathing with lungs is one of the important features. Dolphins also have lungs and breathe with them. Constant temperature is also an important feature, and dolphins also have constant temperature. Moreover, viviparity and lactation are also prominent features of mammals, and dolphins are also in line with this feature.
