Amphibians

Amphibians

 

The amphibians are a type of invertebrate anamniota.
There are lots of types of amphibian they typically start with a larva living in the water, and they do a metamorphosis from larva with gills to an adult air-breathing form with lungs.

Amphibians use their skin as secondary respiration. Some types of salamanders and frogs dont have lungs and breath only with their skins.

There is less amphibians on earth because civilization. Amphibians are ecological indicators. 

They are superficially similar to reptiles but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed.

 

 Most people are familiar with frogs, toads, newts and salamanders.

All amphibians are cold-blooded,there are over 6,500 species of amphibians,

and they inhabit all continents except Antarctica.

They mostly live hidden underground or underwater.

This video sow things of amphibians