The word amphibian means two-lives.
Amphibians spend their lives in the water and on land.
All amphibians begin their life in water with gills and tails. As they grow, they develop lungs and legs for their life on land.
Bullfrog tadpole.
Photo Source: Corel Web Gallery
Amphibians are cold-blooded, which means that they are the same temperature as the air or water around them.
Photo Source: Corel Web Gallery
Fire Salamander Photo Source: Wikipedia (Public Domain)
User - Emilisha
There are more than 4,000 different kinds of amphibians. Members of this animal class are frogs, toads, salamanders, newts, and caecilians or blindworms.