800w, 1200w, 1920w" alt="A cast of Dickinsonia, an animal that lived during the Ediacaran period" />

Scientists believe that the Earth is currently in the midst of its sixth major extinction event, but a new study suggests that’s not the case – it may actually be the seventh. Scientists have found evidence of a previously unknown mass extinction event that struck half a billion years ago.

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Category: Biology, Science

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