There are many groups of animals. Amphibians are in one group, called a Class. All amphibians share some traits.
1) Amphibians lay their eggs in the water.
2) When amphibians hatch from their eggs in the water, they breathe oxygen through gills.
3) Amphibians develop lungs over time as they grow.
4) As they grow, amphibians change for life on land. This is called metamorphosis.
5) Amphibians will always return to the water to mate and lay eggs.
6) Amphibians are cold blooded. They will spend the winter in cold climates resting (in torpor), buried in the mud or leave litter.
There are two main groups (Orders) of amphibians:
• Frogs and Toads
• Salamanders
• (Lesser known amphibian order: Gymnophiona - Wormlike amphibians)
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Amsel, Sheri. "Class - Amphibians (All Age Levels)" Exploring Nature Educational Resource ©2005-2025. March 15, 2025
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