Animals
On planet earth there are nearly two million species of animals, most of which are invertebrates which means that they do not have a backbone. Most species are cold blooded so they use the heat from the Sun to keep warm.
Carnivores eat other animals, birds and insects. Herbivores eat only plant leaves and grass.
Animals range in size from elephants and blue whales down to mice and insects, some of which are very small!
 Polar bear User:Ansgar Walk Creative Commons Licence 
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 Indian Rhino Author: Ltshears
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Mammals
Mammals are warm-blooded creatures with certain characteristics. Human beings are classified as mammals. click here for more information on mammals
 Young male lions GNU Free Documentation License version 1.2
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 water vole author:Arpingstone GNU Free Documentation License version 1.2
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Reptiles
Reptiles are cold-blooded animals which are members of the class Reptilia. Although they are cold-blooded, they have lungs to breathe air and mostly reproduce by laying eggs.
click here for more information on reptiles
 harp seal (Pagophilus) pup © Copyright Matthieu Godbout Creative Commons Licence
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 dugong author:Julius86 GNU Free Documentation License version 1.2
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Birds
Birds are warm-blooded animals that have feathers, wings, beaks and almost all of them can fly.
click for more information on birds
 Gang-gang © copyright Martyman Creative Commons Licence
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 Griffon vulture © Copyright Thermos Creative Commons Licence
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Insects
Insects are arthropods. The arthropods family includes insects and spiders.
click for more information on insects
 praying mantis © Copyright Adamantios Creative Commons Licence
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 Yellow-bellied Beetle Author: Ltshears
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Fish
Fish are aquatic vertebrates. They have gills, fins and other features which allow them to live and breathe in water.
click for more information on fish
 great white shark © Copyright Terry Goss Creative Commons Licence
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 Leafy Sea Dragon © Copyright Wendy Rathey Creative Commons Licence
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