Amphibians
With the amphibians it is chordate gate vertebrate subphylum Amphibia(Amphibia) The general term of the animal I am similar, and to belong to.
The vertebrate which began landlubbing first about 400,000,000 years ago.
Fossils class more than the time is known in a Carboniferous period in the Paleozoic era.
An inhabiting thing is three groups of Ario eyes / Apoda / the Anura now.
As for the salamanders laying ovoviviparity to produce frog and occurring from an egg directly, which grew up to some extent, as for the breeding form, I am various.
The spawning ground is various and lays eggs among underflow water in ground, the underground, Lake bottom of the earth and on a tree from the water such as a pond or the river, and the egg does not have a husk.
In addition, the larva lives a life by gills breathing underwater basically and I metamorphose and get possible to stop ashore.
As for the frog, the mature form does pulmonary respiration basically, and, having four feet, activity in the land is possible with most kinds.
I depend on cutaneous respiration for most by an aquatic partly, and there is the kind to live without air breathing.
Gills do not disappear in the part of the Ario kind throughout the life, and there is the kind that it is not appeared ashore.
In addition, as for the receiving no grant rice, limbs degenerate and there is not it at all, and the aquatic caecilian does not have the gills, but does not have the landlubbing.
The other caecilian is not landlubbing by the underground nature, too.
The vertebrate which began landlubbing first about 400,000,000 years ago.
Fossils class more than the time is known in a Carboniferous period in the Paleozoic era.
An inhabiting thing is three groups of Ario eyes / Apoda / the Anura now.
As for the salamanders laying ovoviviparity to produce frog and occurring from an egg directly, which grew up to some extent, as for the breeding form, I am various.
The spawning ground is various and lays eggs among underflow water in ground, the underground, Lake bottom of the earth and on a tree from the water such as a pond or the river, and the egg does not have a husk.
In addition, the larva lives a life by gills breathing underwater basically and I metamorphose and get possible to stop ashore.
As for the frog, the mature form does pulmonary respiration basically, and, having four feet, activity in the land is possible with most kinds.
I depend on cutaneous respiration for most by an aquatic partly, and there is the kind to live without air breathing.
Gills do not disappear in the part of the Ario kind throughout the life, and there is the kind that it is not appeared ashore.
In addition, as for the receiving no grant rice, limbs degenerate and there is not it at all, and the aquatic caecilian does not have the gills, but does not have the landlubbing.
The other caecilian is not landlubbing by the underground nature, too.