Fossil clues to present dilemma
08 July 2015 - 02:02
The discovery of a mass die- off that happened 250 million years ago could help explain what is wiping out the planet's species today. The event - more than likely volcanic - was catastrophic, possibly wiping out 75% to 80% of the world's species and destroying the largest land animals of their day, early mammal-like reptiles called dinocephalians.
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