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    Vanishing: The extinction crisis is worse than you think

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Vanishing: The extinction crisis is worse than you think

We're entering the Earth's sixth era of extinction -- and it's the first time humans are to blame. CNN introduces you to the key species and people who are trying to prevent them from vanishing.

Vanishing: The extinction crisis is worse than you think

We're entering the Earth's sixth era of extinction -- and it's the first time humans are to blame. CNN introduces you to the key species and people who are trying to prevent them from vanishing.