The largest grove of giant sequoias in Yosemite National Park remained closed Saturday as firefighters battled a blaze that threatened the gathering of the iconic trees and forced campers to evacuate.
Old-growth forest can do things younger tree stands cannot, ecologists say. Older forests may sequester more carbon and harbor increased biodiversity. Now, the people who love these rare, complex ecosystems say they need protection.
The sequoias are "wrapped with house-wrapping material, kind of an aluminum-foil fabric that goes around the base of the trees," says Jon Wallace, who is helping to lead the firefighting effort.
The invasive worms, which reproduce rapidly, are creating havoc in forests. They thrash around so violently that they can jump out of a person's hand. They also lose their tail — on purpose.
The U.S. military and conservation groups forged an unusual alliance to help save the red-cockaded woodpecker, but a Trump-era move to take it off the endangered list could threaten the bird.
California's iconic old-growth redwoods are incredibly resilient and built to survive fires. But even they may find it harder to rebound amid the mounting impacts of climate change.
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