Best and Worst of 2009: Critically Endangered Species at the End of the Year

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addax photo

The IUCN estimates that more than a quarter of all known antelope species—25 of 92 known—are threatened with extinction.


Some, like this Addax, are considered critically endangered. It is believed that there are fewer that 500 of this species left in the wild.

Image credit: Wikimedia Commons

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