Humans might be able to detect magnetic fields for navigation, although some of us might not use the ability. If that's true, I'm certainly in the latter group. But I'd be willing to learn!
Scientists at the French National Centre for Scientific Research found that migratory birds use the Earth's magnetic field to navigate. The researchers said birds use light-sensitive molecules called cryptochromes to detect the signals.
Cryptochromes are sensitive to blue light, and are involved in a various processes linked to the circadian cycle, including growth and development, according to Cordis News, the EU's innovation and information news service.
The really cool part comes at the end of the report:
