What is the name for animals that can live on land and in water?
Amphibians live part of their lives in water and part of their lives on land, eg. frog.
The young ones of amphibians undergo metamorphosis from larvae with gills to air breathing adults with lungs.
Amphibians are poikiothermal ( cold blooded ) vertebrates and some amphibians use their skin as secondary respiratory surface.
Approximately 7000 species of amphibians are known, out of which 90% are frogs.