Extinct in the Wild

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Picture showing Extinct in the Wild with other IUCN categories.

Extinct in the Wild (EW) is a conservation status given to a species, a group of plants or animals, when the only known living members are being kept in captivity (kept in a zoo or aquarium, or planted in pots), or they are no longer living in their normal habitat.

Conservation status
Bufo periglenes, the Golden Toad, was last recorded on May 15, 1989
Lower Risk

Other categories

Related topics

IUCN Red List category abbreviations (version 3.1, 2001)
Comparison of Red list classes above
and NatureServe status below
NatureServe category abbreviations

Species examples[change | change source]

Examples of such animals include:

Reintroduction[change | change source]

Reintroduction is the release of species back into the wild. They come from captivity or moved from other areas where the species survives. It usually involves species that are endangered or extinct in the wild.

It is very hard to reintroduce EW species into the wild, even if their natural habitats were fixed. The main reason may be that the survival skills, which are passed from parents to offspring during parenting, are lost. In other words, the genetics of the species are saved, but the natural skills of the species are lost.