word's manmals at risk of extinction

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The most comprehensie assessment of the world's mammales has confirmed an extinction crisis, with almost one in four at risk of disappearing forever. The new study shows that at least 1,141 of 5,487 mammals on Earth are known to be threatened with extinction. At least 76 mammals have become extinct since 1500. But the results also show consevation can bring species baxk from the brink of extinction, with five percent of currently threatened mammals showing digns of recorvery in the wild.