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Fern stems reveal secrets of evolution – how constraints in development can lead to new forms
Is an organism a sum of its parts, or should they be considered as a whole? New research on ferns shows how the way scientists understand evolution affects how they study life.
Washington and Kyiv said that “highly productive” discussions over a proposal to end the war between Russia and Ukraine would continue. By Cassandra Vinograd A U.S. government cable said that ...
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