PhysOrg Posted November 16, 2017 Share Posted November 16, 2017 The passenger pigeon is famous for the enormity of its historical population in North America (estimated at 3 to 5 billion) and for its rapid extinction in the face of mass slaughter by humans. Yet it remains a mystery why the species wasn't able to survive in at least a few small, isolated populations. Read the full article on PhysOrg Link to comment Share on other sites More sharing options...
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