New Guinea, located just north of Australia, is the world's second largest island with some 786,000 kmē of tropical land and an immense ecological value from 11,000 plant species: nearly 600 unique bird species, including the birds of paradise; over 400 amphibians; 455 butterfly species; and a hundred known mammal species. Most of these species are shared, at least in their origin, with the continent of Australia, which was until fairly recent geological times, part of the same landmass. See Australia-New Guinea for an overview.
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