The main features of amphibians are that the body temperature is not constant, oviparous; the larvae generally live in the water, the adults can adapt to land life, and begin to breathe with the lungs; there are no scales, there are rich mucus glands to assist breathing; they mostly come out at night and hide during the day; in the vinegar heat and cold season, they spend the summer sting or hibernation method.
The main feature of amphibians is that they are thin and slender, with no limbs, but very short; not even, similar in appearance to earthworms.
The main features of the tailed amphibians are the cylindrical shape of the body; the limbs, but short; the long tail is accompanied by lifelong and flattened; the crawling, most of the members are predominantly aquatic, similar to lizards, such as the giant salamander (i.e. "baby fish"), which belongs to the largest amphibians in existence.
The main features of tailless amphibians are that the body is short and wide; it has limbs, which are long; the tail degenerates after adulthood; it jumps and engages in activities; and the larvae are tadpoles, and the development process from juvenile to adult must undergo metamorphosis, such as frogs and toads.
