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'Irreplaceable and threatened': One-fifth of all flowering plants on edge of extinction
A major new analysis of flowering plants suggests an alarming amount of their evolutionary history could be lost for good. Researchers say over one-fifth of angiosperms — the enormous group of plants ...
Smithsonian researcher Sarah Johnson studies bison specimens to understand how the species’s genetic diversity changed after its decline Ashley D'Souza Postdoctoral researcher Sarah Johnson stands ...
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