The first mass extinction event was from a lack of oxygen, researchers find.
Scientists have speculated for years that the world is coming up on its sixth mass extinction, when a majority of the Earth’s creatures become extinct.
But a couple of Virginia Tech researchers are studying what happened in the first extinction in hopes of avoiding another.
A new study led by Scott Evans, a postdoctoral researcher, and co-author Shuhai Xiao, a paleobiologist, showed that 80% of animals and organisms that died off 550 million years ago did so because of a drop in the amount of oxygen in waterways.
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Some animals need more oxygen to survive, and the animals hit hardest were those that required more and were less mobile — they couldn’t get to areas with greater oxygen supplies.
Larger animals that could take deeper breaths were more likely to live.
“This suggests that the extinction event was environmentally controlled, as are all other mass extinctions in the geologic record,” Evans said.
Foreign [Music] The first mass extinction event was from A lack of oxygen researchers find Scientists have speculated for years That the world is coming up on its sixth Mass extinction when a majority of the Earth's creatures become extinct but a Couple of Virginia Tech researchers are Studying what happened in the first Extinction in hopes of avoiding another A new study led by Scott Evans a Postdoctoral researcher and co-author Shuhai Xiao a paleobiologist showed that 80 percent of animals and organisms that Died off 550 million years ago did so Because of a drop in the amount of Oxygen and waterways to stay up to date With latest top stories make sure to Subscribe to this YouTube channel by Clicking the button above this video Some animals need more oxygen to survive And the Animals hit hardest were those That required more and were less mobile They couldn't get to areas with greater Oxygen supplies larger animals that Could take deeper breaths were more Likely to live this suggests that the Extinction event was environmentally Controlled as are all other Mass extinct Nations and the geologic record Evan Said a mass extinction occurs when at Least 75 percent of species are Destroyed the Earth has had five the
Last one about 65 million years ago Wiped out most dinosaurs scientists Still debate the causes of the Extinctions but the reasons range from Asteroids colliding with the Earth to Volcanic activity both can also cause Temperature shifts that deplete oxygen Levels as Waters warm climate change has Increased average water temperatures and Threatens already vulnerable species Said Joe would at the Chesapeake Bay Foundation Foreign [Music]