. Toads are a common animal, which can be said to be distributed almost all over the world. A toad is an animal in the family Bufonidae, order Anura, class Amphibia. Mammals and amphibians are the result of the classification of an animal according to the category to which it belongs. Mammals refer to the class Mammalia, while amphibians refer to the class Amphibia. Since toads belong to the class Amphibia, they are amphibians. Mammals and amphibians are two different and independent animals, and there is no intersection between them, so toads are not mammals.
In fact, there is a big difference between mammals and amphibians. Mammals are much more advanced than amphibians. The differences between toads and mammals are also very obvious. For example, in terms of the way of breathing, mammals breathe with their lungs. Although adult toads can also breathe with their lungs, their lungs are far less advanced than those of mammals, and their functions are not particularly perfect, so their skin also undertakes part of the task of breathing. For example, in terms of whether the body temperature changes, mammals are basically warm-blooded animals, but toads are variable temperature, and the body temperature is not constant.
? As mentioned above, the toad is an amphibian, not a mammal. Amphibians and mammals are different in many key characteristics, and reproductive methods are one of the most important differences. Viviparity is a characteristic of mammals, and they usually have lactation. But amphibians are different. They reproduce in an oviparous way. As amphibians, toads are naturally oviparous, not viviparous.
