Why was a beloved, 80-year-old elm tree cut down on Brown's campus?
When no signs of life were left, university officials took the “last resort” and decided to remove the dead tree on May 4.
Most animals have their own version of tree rings. Here's how we biologists use them to help species thrive
We have a natural fascination with time—how landscapes have been carved over millennia, how our bodies grow and sag with age, ...