Virginia Tech researchers discovered a sixth mass extinction that took place on earth nearly 550 million years ago due to a drop in oxygen.
A study conducted by researchers at Virginia Tech suggests the missing fossils of these lifeforms signify the event.
"Previous work, by ourselves and others, had shown changes in diversity in these oldest animal communities, known collectively as the Ediacaran Biota," Scott Evans, a postdoctoral researcher at Virginia Tech said on Thursday."In order to quantify those changes in diversity and test hypothesized causes for such change, we compiled a database of every record of Ediacaran fossil occurrences from around the world.
Clam digger Scott Lavers, above, paddles his canoe on his way to work on a mudflat exposed by the receding tide, in this Friday, Sept. 4, 2020, file photo in Freeport, Maine. Warming waters and invasive species are threatening a way of life for many in the country's seafood industry.Of the 20% of life that survived, scientists found they all had high surface area, which helps animals survive.
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