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That's what conservationists are having to do in South Africa, where the riverine rabbit is on the brink of extinction. With fewer than 250 breeding pairs left, the riverine rabbit could soon join the long-departed wooly mammoth among the ranks of vanished creatures.
The bunnies aren't the only ones facing extinction. According to the 2003 Red List of Threatened Species released Tuesday by the World Conservation Union (IUCN), the variegated spider monkey, the tiny Galapagos snail, and the Mekong giant catfish are also fighting for their future. The turtlelike Seychelles fresh water terrapin lost its battle this year and is gone forever.
Two Hawaiian plants — the flowering Clermonteia peleane and the palmlike Cyanea superba — both critically endangered last year, are now extinct in the wild. Eight other species were added to the extinct in the wild list, including an earthworm from Tasmania, Australia, last seen in 1971.
There are 12,259 known plants and animal species threatened with extinction, falling into the critically endangered, endangered, or vulnerable categories, said the IUCN. Last year the number was at 11,167, but the Gland, Switzerland–based organization said it is difficult to compare the numbers because new species are being discovered and others change categories."
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http://www.enn.com/news/2003-11-18/s_10500.asp