Monday, January 2, 2017

The Earth Has Experienced Five Mass Extinctions

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Cosmos: The big five mass extinctions

Biologists suspect we’re living through the sixth major mass extinction. Earth has witnessed five, when more than 75% of species disappeared. Palaeontologists spot them when species go missing from the global fossil record, including the iconic specimens shown here. “We don’t always know what caused them but most had something to do with rapid climate change”, says Melbourne Museum palaeontologist Rolf Schmidt.

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WNU Editor: Bottom line .... 5 major extinction events.

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