June 6, 2023

New perspective on Earth’s first mass extinction event

A new US study has traced the cause of the first known mass extinction of animals, the End-Ediacaran extinction, around 550 million years ago, to a reduction in the global supply of oxygen. The research report was published in the PNAS journal. About 80 percent of animals died out during this period, with animals that depend on large amounts of oxygen appearing to have been hit particularly hard, the study suggests. This suggests that the extinction event was environmentally controlled, as are all other mass extinction events in the geological record. What exactly is causing the global oxygen decline? The researchers thought it could be any combination of volcanic eruptions, plate tectonics, asteroid strikes, etc., but what they saw was that the extinct animals appeared to be a response to reduced global oxygen supplies.

Ewen Eagle

I am the founder of Urbantechstory, a Technology based blog. where you find all kinds of trending technology, gaming news, and much more.

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