News Animals

Fish Switch: Salmon make baby trout after species, sex swap

By Susan Milius

- More than 2 years ago

Biologists have implanted male-reproductive tissue from rainbow trout into male and female salmon, which then bred a new generation of baby trout.

NOT LIKE FATHER. Researchers inserted rainbow trout reproductive tissue into salmon hatchlings (left). When the surgically altered salmon matured, they produced a new generation of trout (right), including some showing albino ancestry.