More Nature News: Speckled alders have hidden superpowers If you take a walk in a snowy field (or forest) among some birch trees, look down. You should see tiny things in the snow, little seed ...

There are 130 birch trees in the one-third acre study plot, part of the OneTree Alaska project that Dawe oversees. Researchers are using the trees to see how a longer growing season is affecting ...

There are actually five species of birch in the Poconos, and three have white bark. The other two — black, or sweet birch, and yellow birch — are common in our forests of maple, beech and hemlock.