Subphylum Vertebratae

A red and blue frog

What do fish, amphibians, reptiles, birds, and mammals all have in common? It may be hard to think of the answer at first, as they seem very different. Some have feathers and fly, others have scales and swim. There are many differences among vertebrates, but one characteristic fish, amphibians, birds, and mammals have in common is that they all have a spine. In this topic, you will investigate the different vertebrate groups.

Essential Questions

  • What are the basic characteristics of fish, amphibians, reptiles, birds, and mammals?