“THE GREAT EXTINCTION” —- WHY?

Contributed by Michael N. Chernoff, BSc. Geological Engineering © May 31, 2021

96 percent of the earth’s species were extinguished at the close of the Permian period (252 million years … Continue reading

The post “THE GREAT EXTINCTION” —- WHY? first appeared on Friends of Science Calgary.

via Friends of Science Calgary

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June 7, 2021 at 07:27AM

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