ARCATA, California, June 22 -- The California State Polytechnic University-Humboldt posted the following news:

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What Made Trees Possible? New Research Points to Drought Survival

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Researchers from Cal Poly Humboldt, Yale University, the University of Hohenheim in Germany, and the Czech Academy of Sciences set out to understand how trees evolved and what allowed them to become some of the largest and longest-living organisms on Earth.