The amphibian animal is also a type of animal that people be familiar with, is vertebrates the top of the evolution history is living by the water to six living of transition type, become the body can adapt the land life, but breed to can not get away from a water with the body growth still.Main characteristic BE:Body temperature not the settle;Oviparous, the body is living in the water, becoming a body after abnormal condition can adapt the land life, using the lung breath, the skin bare but moist, have no scale, hair etc. the skin derivatives, glue the liquid gland abundant, have the assistance breath function.Amphibious type the mire basin that originate to be apart from now about more than 300,000,000 year agoses Ji.During the period of turning into endlessly, fish is perfect to come to a quality to change from water to six gradual egos and adapt the land new surrounding, as a result become amphibian animal, they are to land four foot animals at the earliest stage.
The amphibian animal of the whole world have 4000 remainings to grow totally.Is divided into three greatest eyeses according to their appearance.
The eyes of .(have no foot eyes)Main characteristic BE:The body is thin long;Have no arms and legs;The tail is short or have no;Likeness earthworm.China has only a kind of, namely the version fish .Being the our country purpose is unique representative.
There are the tail eyes.Main characteristic BE:The body is round;There is arms and legs, shorter;Have flat the long tail but side the whole life;Crawl along, most categories with the water stay a life is lord, the likeness lizard, such as big , be so called"the doll fish", it is now to living biggest amphibian animal of type of figure.
Have no tail eyes.Main characteristic BE:Body short breadth;There is arms and legs, longer;The body contain tail, becoming a body to have no tail, jumping up an activity, the body is a tadpole, needing from the tadpole go to growth of the body through abnormal process, such as the frog and the .
Amphibian animal 3 purpose figures is different, the ability of[with] their defense,proliferation,migration is weak, is big to the dependence of the environment, although have various ecosystem protection orientation, compare the vertebrates category of other key links still less, it distribute in addition to the ocean and big desert, the plain,mound,high mountain and plateau etc.s are various trace that living to all have them in the, tallest distribute elevation and can reach to 5000 meters or so.They mostly the night, much concealment in the daytime, the evening goes to the day dawn activity multifarious, extremely hot or strict and cold hour with the of the summer or hibernate a way to spend.Regard the animality food as principle, have no defense the enemy harm of ability, all of fish,snake,bird,monsterses are they of natural enemy.
China is diverse sex of the environment because of the living creature.Existing amphibious animal is 302.But Yunnan is diverse natural environments because of the special geography and complications, have very abundant of amphibious species, about 100 remainings grow.Have 40% that the national amphibious animal grows a number.At the behind animal diverse sex-the amphibious type introduces several categories that the kinds represent sex only.People pass diverse sex of know the amphibious species.Pay attention to their existence appearance, further protection mankind this friend
温馨提示：答案为网友推荐，仅供参考