Saturday - March 14, 2026
Bear Down 100: Reading time in wood
March 13, 2026
TUCSON, Arizona, March 13 -- The University of Arizona posted the following news release:

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Bear Down 100: Reading time in wood

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Inside every tree trunk is a record of every year it lived. For nearly a century, the University of Arizona has been the world's leading institution for reading that record.

Trees grow one ring per year, and the width of each ring reflects the conditions of that year. A wide ring signals a wet, . . .

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