ZOO 313- Class Amphibia

Problems faced during amphibian transition to land. The movement from water to land is most perhaps the most dramatic event in animal evolution. Although invasion of land requires modification, of almost every system in the vertebrate body, aquatic vertebrates retain many basic structural and functional similarities. There are several important differences that animals must accommodate when moving fom water to land. The differences includes: Oxygen content, density, temperature regulation and habitat diversity.