There has been much debate about whether humans have maintained the ability to detect the Earth's magnetic field and to use this sense to orientate themselves. A recent experiment on 34 people (a bit small) has suggested an individually variable brain wave response when subjects are exposed to perturbations of fields in a cage-like enclosure (https://www.theguardian.com/science/2019/mar/18/humans-earth-magnetic-field-magnetoreception). If humans have this capacity, it is generally weak. I think we still need the compass.
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