Resumen de Animal magnetism
Nicholls discusses whether defecating, sleeping or hunting, many animals feel strangely attracted to the north. It has long been suspected that animals such as turtles and birds use magnetoreception to navigate, but it is becoming increasingly obvious that many other animals sense magnetism too, seemingly when they're doing very little. Insects like to align their bodies along a north-south axis, as do sleeping warthogs, fish in tanks, nesting house mice and foxes on the hunt. Early evidence that animals align themselves in a particular direction was dug up more than 50 years ago by entomologist Purushottam Deoras.
