Requirement for Hypomagnetic field (Zero field) studies may apply to anomalous research?
It’s already known that hyper-weak non-thermal magnetic fields can affect organisms. A well known and reproducible effect involves migration and navigation of birds, turtles and other organisms called Magnetoreception. Although a mechanism has not yet been identified, behavioral studies on animals can reliably produce the effect at magnetic field strengths from one to a few tens of nanoTesla (nT). These effects can be reliably produced in the presence of the much stronger natural geomagnetic fields generated from within earths core. Despite the magnetic field from the planet core being thousands of times stronger than the weak magnetic field strengths which the researchers are using, the researchers can still reliably produce these behavioral effects wthin organisms without them being drowned out by the stronger fields.
It’s worthwhile providing some comparisons to demonstrate just how weak the magnetic field strengths used in Magnetoreception studies are…