From towering coastal redwoods to dinosaur-era Wollemi pines and firs that make the perfect Christmas trees, even our most revered woody plants are in grave danger.
Volcanoes often give little warning before they erupt, but now scientists have discovered an unexpected early warning sign—trees.
Spruce trees anticipated a solar eclipse by syncing their signals. Older trees responded first. Forests may behave as one living system.
