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8 animals pulled back from the brink of extinction

Baby black-footed ferrets

Photo: Kimberly Tamkun/ USFWS/flickr

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Not dead yet

According to scientists, life on Earth is experiencing one of the worst mass extinctions in history — the so-called Sixth Extinction, or Holocene extinction. Of the 47,677 species assessed by the International Union for Conservation of Nature, 17,291 of them are threatened. That's an astounding number, and that's just for the small percentage of species that have been assessed. 

In spite of the grim numbers, however, there are some success stories. Several animals have looked extinction in the eye and turned things around. These conservation success stories offer hope that life can recover. 

In that spirit, here's our list of eight animals that have come back from the brink. (Text: Bryan Nelson)