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The Mystery of Unseen Species
1:12:23 - 1:13:24 (01:01)
UN scientists speculate that there may be 8.7 million species in the world; however, only 1.7 million of them have been officially identified and the rest could be extinct.
UN scientists speculate that there may be 8.7 million species in the world; however, only 1.7 million of them have been officially identified and the rest could be extinct.