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Efforts to restore lost forests often fail, but Ethiopians are betting big: planting billions of saplings to revive habitat, regenerate soil, and stabilize the land.

New research shows that meeting tree canopy goals could prevent more than 67,000 premature deaths in the United States.

Marine creatures will do almost anything for a meal—including feasting on the sperm and eggs of spawning invertebrates.

Pollinator pathogens are spreading through international trade, threatening both agriculture and wild ecosystems.

To bulk up for winter hibernation, Alaska’s brown bears employ a range of techniques for snaring salmon.

Twenty-five years ago, land managers unleashed a beetle to control an invasive tree sucking rivers dry. But water levels haven’t risen—and the real villains are still causing trouble.

New science on gray foam-nest tree frogs hints at the evolutionary benefits of multiple sexual partners.

Tens of thousands of small barriers hamper fish recovery in the northeastern United States. But while the demolition of big dams out west gets the most attention, a similar revolution is revitalizing northeastern streams and rivers—one tiny dam at a time.