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==Introduction==

==Introduction==

This section is devoted specifically to the renal anatomy and physiology of fish, aquatic and terrestrial amphibians, birds and reptiles. These animals excrete nitrogenous waste differently to domestic mammals, this combined with the very different habitats where these animals exist results in a variety of different renal mechanisms and appearances.  

This section is devoted specifically to the renal anatomy and physiology of fish, aquatic and terrestrial amphibians, birds and reptiles. These animals excrete nitrogenous waste differently to domestic mammals, this combined with the very different habitats where these animals exist results in a variety of different renal mechanisms and appearances.