The groups of amphibians are:
Frogs and toads;
Salamanders and newts;
legless amphibians (rare)

The best known,a dn most common, amphibian is the frog. Toads are a special subgroup of frogs. A frog begins its life in an egg surrounded by jelly then hatches into a tadpole and lives in water. The tadpole has many features of a fish such as gills and a fin. Eventually the tadpole grows legs, develops lungs and becomes a land animal - a frog. Newts are also amphibians.

Frogs lay clumps of eggs called spawn, and toads lay strings of eggs, while newts lay single eggs. Most kinds of frogs lay their eggs in pond water but some rainforest tree frogs lay their eggs in the pools of water that form on plants that live high in the trees.