Magnetic alignment in grazing and resting cattle and deer

@article{Begall2008MagneticAI,
  title={Magnetic alignment in grazing and resting cattle and deer},
  author={S. Begall and J. {\vC}erven{\'y} and Julia Neef and O. Vojtěch and H. Burda},
  journal={Proceedings of the National Academy of Sciences},
  year={2008},
  volume={105},
  pages={13451 - 13455}
}
We demonstrate by means of simple, noninvasive methods (analysis of satellite images, field observations, and measuring “deer beds” in snow) that domestic cattle (n = 8,510 in 308 pastures) across the globe, and grazing and resting red and roe deer (n = 2,974 at 241 localities), align their body axes in roughly a north–south direction. Direct observations of roe deer revealed that animals orient their heads northward when grazing or resting. Amazingly, this ubiquitous phenomenon does not seem… Expand
Cattle on pastures do align along the North–South axis, but the alignment depends on herd density
Extremely low-frequency electromagnetic fields disrupt magnetic alignment of ruminants
Compass-controlled escape behavior in roe deer
No alignment of cattle along geomagnetic field lines found
Dogs are sensitive to small variations of the Earth’s magnetic field
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