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There might be precedent for being able to detect changes in magnetic field https://www.pbs.org/newshour/science/dogs-poop-in-alignment-with-earths-magnetic-fi

There might be precedent for being able to detect changes in magnetic field https://www.pbs.org/newshour/science/dogs-poop-in-alignment-with-earths-magnetic-field-study-finds https://www.pbs.org/newshour/science/dogs-poop-in-alignment-... but then again maybe not https://www.sciencedirect.com/science/article/abs/pii/S1558787821001696 https://www.sciencedirect.com/science/article/abs/pii/S15587...

IAmBroom 28d ago
Yeah, that first study was pure bunkum. Some animals - migrating birds, notably - can detect magnetic fields. IIRC, sharks have close-range magnetic sensors in their gumlines. But these are extremely rare and niche adaptations to difficult problems.