Migrating animals may imprint on a magnetic signature

One of nature's enchanting mysteries is how marine animals such as sea turtles and salmon cross thousands of miles of ocean but still find their way back to their birthplaces to reproduce.

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<p><a href="http://www.physorg.com/news147424123.html">Migrating animals may imprint on a magnetic signature</a></p> <p>One of nature's enchanting mysteries is how marine animals such as sea turtles and salmon cross thousands of miles of ocean but still find their way back to their birthplaces to reproduce.</p>