List of Animal Classes - mammals, fish, birds, reptiles, amphibians, insects, arthropods

There are six main classes of animals in this world: mammals, birds, fishes, reptiles, amphibians,and invertebrates.

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Animal Class	Description (Which Class do you like most?)	Details
	Mammals Dogs, cats, horses, duckbill platypuses, kangaroos, dolphins and whales are all mammals. What do all these animals have in common? All of these animals drink milk when they are a baby and have hair on their body.	Class: Mammalia Orders: 26 Families: 137 Genera: 1142 Species: 4785 show orders
	Birds All birds have feathers and are born out of hard-shelled eggs. The feathers on a bird?s wings and tail overlap. Because they overlap, the feathers catch and hold the air. This helps the bird to fly, steer itself, and land.	Phylum: Chordata Class: Aves Orders: 29 Families: 194 Genera: 2161 Species: 9721 show orders
	Fishes Fish are vertebrates (animals with a backbone) that live in water and have gills, scales and fins on their body.	Phylum: Chordata Orders: 62 Families: 504 Species: 25777 show orders
	Reptiles Reptiles are a class of animal with scaly skin. They are cold blooded and are born on land.	Phylum: Chordata Class: Reptilia Orders: 4 Families: 60 Genera: 1012 Species: 8163 show orders
	Amphibians Amphibians are born in the water. When they are born, they breath with gills like a fish. But when they grow up, they develop lungs and can live on land.	Phylum: Chordata Class: Amphibia Orders: 3 Families: 44 Genera: 434 Species: 5400 show orders
	Invertebrates Over 95 percent of all animals are invertebrates. They are characterized by a structure they all lack: A backbone or vertebal column.	Orders: 370 Species: 1300000 show orders