JESSICA WILSON / NASA / SCIENCE PHOTO LIBRARY JESSICA WILSON / NASA / SCIENCE PHOTO LIBRARY
A world map showing the approximate 8 main ecozones of Earth. An ecozone is a region containing animal life that evolved together, separated from the other ecozones, for most of their history. The ecozones are: Palaearctic (purple, covering much of Eurasia); Nearctic (green, North America); Neotropic (red, South and Central America); Afrotropic (yellow, sub-Saharan Africa); Indomalaya (orange, covering South-East Asia and some equatorial Pacific islands); Australasia (blue, covering Australasia); Oceania (beige, the Pacific islands); and Antarctic (white).
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