Add Yahoo as a preferred source to see more of our stories on Google. When the drug clobazam accumulates in Atlantic salmon's brains, migrating juvenile fish reach the ocean sooner, a new study found.

Rising water temperatures in the Columbia River Basin are raising questions about whether fishery managers must take new steps to save the imperiled fish. A persistent heat wave gripping parts of ...

In the Northwest, salmon are struggling to make the seasonal migration upstream to their spawning grounds after a recent heat wave warmed up water temperatures. In fact, the water is so hot, ...

Climate change has led to earlier spring blooms for wildflowers and ocean plankton but the impacts on salmon migration are more complicated, according to new research. In a new study, published in the ...

In The Americas, Tom Hanks takes us on an epic 10-part adventure through the natural world. The series covers the world’s largest supercontinent, stretching from the southern tip of Chile to the ...

SEATTLE — Salmon migration and spawning peaks in October in western Washington, but the record-breaking warm and dry summer in 2022 is having an impact on salmon numbers. All salmon first pass through ...

(CNN) — Hatched in quiet streams and rivers, salmon undertake a perilous journey to reach the open ocean where they become mature adults. Over millions of years, generations of young salmon have ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Hatched in quiet ...