Newly-hatched salmon use geomagnetic field to learn which way is up

(Oregon State University) Researchers who confirmed in recent years that salmon use the Earth's geomagnetic field to guide their long-distance migrations have found that the fish also use the field for a much simpler and smaller-scale migration: When the young emerge from gravel nests to reach surface waters.
Source: EurekAlert! - Biology - Category: Biology Source Type: news