They also look quite different from the tadpoles of the early phase of the life cycle. Amphibians are also cold-blooded. Describe the life cycle of an amphibian. Make a list of the characteristics of each stage, and be prepared to help me list these characteristics on the blackboard. Another group of vertebrates is the reptiles.
Reptiles have dry scaly skin and spend all of their lives on land.
Like fish and amphibians, reptiles are cold-blooded animals. Unlike fish and amphibians, reptiles lay their eggs on land. Reptiles are different in many ways. Birds are more advanced than fish, amphibians or reptiles. The body covering on birds is called feathers.