For Millions Of Years There Was A Dead Zone In The Tropics

The mass extinction that hit Earth late Permian Period, 250 million years ago, before the reign of the dinosaurs, wiped out most of the world’s life forms. By some estimates, about 96 percent of all marine species and 70 percent of land species perished.

Typically, an extinction of such magnitude is followed by a period of scarcity of biodiversity during which no new species, and that usually takes tens of thousands of years. In this case, the lack of biodiversity phase, during the first s more here http://logicalscience.com/2014/08/for-millions-of-years-there-was-a-dead-zone-in-the-tropics/

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