Tree core sampling. Credit: Fernanda Machicao. Three neotropical tree species with previously documented annual tree rings were examined to test their potential as biomonitors: wild figs (Ficus ...

How do you determine the age of a tree? Just count the rings, of course! One ring equals one year of growth. If you’ve ever stumbled upon a tree stump you may have even done it yourself. But if you’re ...

TREES HAVE STORIES to tell. Within their annual growth rings are records of drought and deluge, but scientists can also use them to reconstruct environmental pollution events. Tree rings can be used ...

ANGELES NATIONAL FOREST >> If trees could talk about the weather, Dave Meko would be out of a job. Meko, a professor from the University of Arizona Laboratory of Tree Ring Research, has made a career ...

TUESDAY, Dec. 23, 2025 (HealthDay News) — Trees don’t just clean the air, they also keep a quiet record of the past. New research suggests that tree rings may help scientists uncover missing pieces of ...