Describe the geographical limit, climatic condition and characteristic fauna with special reference to mammalia of either oriental realms or australian realms.
Australian Realm:
1. Geographical limit. Australia, New Zealand, New Guinea, Tasmania and some islands of adjacent areas.
2. Climatic conditions. Hot and temperate, both types of climate are present here. Average rainfall in a year is 75 mm.
3. Fauna (mammals). Ornithorhynchus (a marsupial), Tachyglossus (ant eater), Kangaroo, Dasyures, Dendrolagus (climbing kangaroo), Petaurus (flying opossum), wolf are the remarkable members.
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