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Animal Kingdom
Vertebrates
In-Vertebrates
---- Fish | Annelids ---- |
---♤ Amphibians | Mollusks *— |
---- Reptiles | Arthropods ---- |
—— Birds | Arachnids ---- |
— Mamais | Echinoderms ---- |
Protoza •— |
Do you know?
Eels are sometimes mistaken for Sea Snakes. Eels are
part of the fish family and have gills for breathing. Sea snakes do not have gills but lungs instead and need to go to the surface for air.)