An invasive species on Socotra, free-roaming goats devour saplings before they have a chance to grow. Outside of ...

TANNERSVILLE — Marc Wolf steps off a trail at the Mountaintop Arboretum to examine a beech tree with mottled, bumpy bark. “This is pretty typical of beech bark disease,” he said. “Beech trees would ...

Among them are bottle trees, whose swollen trunks jut from ... Annika Hammerschlag But the tree is more than a botanical curiosity: It’s a pillar of Socotra’s ecosystem. The umbrella-like ...