Just about every creature on Earth needs to grab some Zs from time to time. Imagine trying to doze while dodging great whites and killer whales.

Forming large groups while in the ocean protects Pacific salmon from predators, research finds. It can also limit how much they eat.

Farming shellfish instead of large, predatory fish, is also better for the planet.

In a blind taste test, Danes preferred farmed salmon to wild. But when they learned where the fish came from, they totally changed their minds.

Salmon migrate thousands of miles from inland streams to the ocean and back. The newly enacted infrastructure bill includes funding to help salmon and other wild species on their way.

Aquaculture is a growing source of healthy protein for millions of people around the world, but there are big differences between farming fish on land and at sea.

Groundwater was once thought to buffer streams from warming, but an inexpensive new technique shows streams fed by shallow groundwater may be just as susceptible as those without.

A recent US study found tyre chemicals were polluting rivers and poisoning migratory salmon.

Fish farms feed millions of people around the world, but they also consume a lot of fish that are dried or ground up to make aquafeed. Researchers are developing more sustainable alternatives.