- Dozens of animal species, from ants to whales, have well-documented abilities to detect the geomagnetic field and use it for orientation and navigation.
- After some false starts, researchers may have now located the organs for this magnetic sense, and they are finally understanding the physics that underpins it.
- Some animals may use microscopic magnetic particles to detect magnetic fields; others might harness quantum effects on certain pigments in the eye.
Monday, January 16, 2012
How do they know where to go?
The January 2012 Scientific American examines the role of the earth's magnetic field: