Many American schoolchildren grow up learning that Yellowstone was the world’s first national park. But across the globe in Mongolia, just south of the capital, Ulaanbaatar, a mountain holds a claim ...

On a hot day, I can’t think of anywhere better to be than a cool place where I can learn something new. One of my favorites ...

Vessels in a tree’s xylem transport water from the roots to the rest of the plant. Hardwood tree species tend to have large ...

New research finds that centuries-old oaks can dynamically rewire how they absorb nutrients—suggesting forests may be more resilient allies in the climate fight than once believed.

Many caterpillars feed on the leaves of oak trees. Most will not do much damage, but some can pose a real threat to the ...