Supersense

Do Dogs Have Extra Sense To Let Them Navigate?

Scientists say that dogs and other primates have a molecule in their eyes which could help them to use magnetic fields to help them perceive direction, altitude and location.

In the first study of its kind, researchers have found the cryptochrome 1 molecule in the retinas of 90 animal species - including dogs, wolves, bears and foxes.

While the cryptochrome 1 molecule has a hand in controlling the circadian rhythms of animals, it may also allow them to see the Earth's magnetic fields.

http://news.sky.com/story/1647710/do-dogs-have-extra-sense-to-let-them-navigate