원문출처 : https://www.cnn.com/2021/06/13/us/mystery-event-wiped-90-percent-sharks-millions-scn/index.html
2021.06.14 00:05
Scientists say 90% of the world's open-ocean sharks died off in mystery extinction event 19 million years ago
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원문출처 : https://www.cnn.com/2021/06/13/us/mystery-event-wiped-90-percent-sharks-millions-scn/index.html
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