Response to DSC: "Kobayashi Maru"

In the first episode of Discovery's fourth season, we meet the Alshain, who navigate by their planet's magnetic field, which is in the processes of reversing polarity. Do planetary magnetic fields actually flip? And do real-life organisms use magnetism to orient themselves?

Paper about protist–magnetic bacteria symbiosis: https://www.nature.com/articles/s41564-019-0432-7

Paper about human magnetoreception: https://authors.library.caltech.edu/90480/

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