NOTE: This article is only available to subscribers. Subscribe now to gain access to all articles, read exclusive interviews with top scientists from around the world, and browse the site ad free. The first month is free.

Salmon use magnetic fields to return home

February 07, 2013

Salmon use magnetic fields to return home

Salmon may rely on magnetic fields to navigate waterways.

A new study has discovered than salmon use the Earth’s magnetic field in order to swim across the ocean to find the stream the fresh water stream they were born in. A group of U.S. Researchers have suggested that the salmon are able to find their birth streams because of a memory of the magnetic field where they first entered the ocean.

Salmon are born in fresh water streams, but soon venture out into the salt water ocean. They then make the grueling trip back to their birth stream in order to begin breeding. Although this process has been extensively studied, no one knew how the salmon’s achieved such a remarkable task.

Comments should take into account that readers may hold different opinions. With that in mind, please make sure comments are respectful, insightful, and remain focused on the article topic. In addition, readers can send us tips, press releases, or ideas for stories: