See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Seventy percent of salmon at the fish counter grow up in underwater ...

Two young coho salmon swim from freshwater to saltwater for the first time. One was born in the wild; the other was born in a hatchery and released into the same river. The wild-born salmon is more ...

Leadership is an innate quality, said a fish study Wednesday that predicted trouble in animal social groups, also human ones, when natural roles are reversed. Groups tend to perform better with a ...

A new study shows that cichlid fish reared in larger social groups from birth display a greater and more extensive range of social interactions, which continues into the later life of the fish.

Salmon born in captivity become domesticated in as little as one generation, a new study finds, explaining why hatchery-born fish don't do as well as wild-born ones in Oregon rivers. Subscribe to read ...

Salmon born in captivity become domesticated in as little as one generation, a new study finds, explaining why hatchery-born fish don't do as well as wild-born ones in Oregon rivers. Subscribe to read ...

A new study shows that cichlid fish reared in larger social groups from birth display a greater and more extensive range of social interactions, which continues into the later life of the fish.