? Salamanders belong to the family Salamandridae, order Caudata, class Amphibia, phylum Chordata. Because they belong to the class Amphibia, they are also amphibians. In fact, salamander is a common and typical amphibian, which conforms to the basic characteristics of amphibians. The difference between the larval and adult stages
of amphibians is generally large, as is the case with salamanders. When they are young, they live underwater and breathe easily through their gills, but when they are adults, they can live on land. At this time, they breathe through their lungs, and their skin plays a very important role in supporting breathing, so salamanders generally need to stay in humid places so that they can breathe more easily.
In addition, amphibians generally reproduce in the oviparous way, and salamanders will reproduce in the appropriate breeding season, also in the oviparous way. Amphibians also have a common feature of body temperature, which is generally not constant, that is, often referred to as poikilotherms. Salamanders are also poikilotherms, so they become inactive in winter due to lower temperatures and go into hibernation when necessary.
on land? As mentioned above, salamanders need to live underwater because they breathe with gills when they are young. The adult stage is different, and the salamander can live on land. However, salamanders also need to breathe with their skin at this time, and when the skin is in a moist state, it is more suitable to assist their breathing. Therefore, salamanders still have a certain dependence on water.
Some of the more terrestrial salamander species can live on land farther from the water, but generally live in humid places. Some salamander species are less terrestrial, so they can only live near water sources to facilitate their activities in the water.
