Wait, don’t we use Earth’s magnetic field as a compass, too? Or, do we use a compass with Earth’s magnetic field? #trippy

https://www.wired.com/story/sharks-use-the-earths-magnetic-field-like-a-compass/#intcid=recommendations_right-rail-shorter-timeframe-experiment-1hr_5e18db52-cb2b-4faa-9da5-fe9970bb29fa_popular4-1

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