The European bison and wild horses in central Asia are among the threatened species that have been successfully reintroduced into the wild, but some species are not so lucky.
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Extinct-in-the-wild species in conservation limbo - UK News News - Report by AFR | Online Free Press release news distribution topwirenews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from topwirenews.com Daily Mail and Mail on Sunday newspapers.
For species classified as "extinct in the wild", the zoos and botanical gardens where their fates hang by a thread are as often anterooms to oblivion as gateways to recovery, new research has shown.