PhysOrg Posted August 12, 2021 Share Posted August 12, 2021 A new study from Tel Aviv University and the Weizmann Institute revealed that over the last 20,000-50,000 years, birds have undergone a major extinction event, inflicted chiefly by humans, which caused the disappearance of about 10 to 20 percent of all avian species. The vast majority of the extinct species shared several features: they were large, they lived on islands, and many of them were flightless.View the full article Quote Link to comment Share on other sites More sharing options...
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