Friday, January 21, 2022
HomeClimate411Finding: Mass Extinctions of Land-Dwelling Animals Occur in 27-Million-Year Cycle

Finding: Mass Extinctions of Land-Dwelling Animals Occur in 27-Million-Year Cycle

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Mass extinctions of land-dwelling animals—including amphibians, reptiles, mammals, and birds—follow a cycle of about 27 million years, coinciding with previously reported mass extinctions of ocean life, according to a new analysis published in the journal Historical Biology. The study also finds that these mass extinctions align with major asteroid impacts and devastating volcanic outpourings of lava…

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