The salmon diaries: Life before and after Klamath Dam removal

When salmon return from the ocean to the Klamath River after the world's largest dam removal project ends this fall, they will regain access to 400 miles of historical spawning habitat their species has been cut off from ...

Discarded Christmas trees, a gift to Stockholm's fish

On a freezing January morning, dozens of discarded Christmas trees collected after the holidays are tossed into Stockholm's glacial waters, recycled to provide a welcoming habitat for marine life.

How bringing back lost species revives ecosystems

Scientists often study the grim impacts of losing wildlife to hunting, habitat destruction and climate change. But what happens when endangered animals are brought back from the brink?

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