About the Amazing Amphibians Lesson
An introduction to amphibians with comparison and contrast of the major groups.
• Students will identify the habitat amphibians usually frequent.
• Students will compare and contrast the three groups of amphibians.
• Students will define the process of metamorphosis and contrast the features of tadpoles with mature frogs.
Amphibians are usually found in damp habitats like swamps or rain forests. One reason for this is that most amphibians use their moist skin to carry out gas exchange with the surrounding environment. This is a kind of breathing. Another reason is that because amphibian eggs have no shells, they must be kept moist as well. They would dry out very quickly if they were not deposited in a moist environment. This is why most amphibians lay their eggs in ponds or swamps.