Dogs may sense Earth's magnetic field and use it like a compass.

Hunting dogs use more than their noses to find their way back to their owners hundreds or even thousands of feet away, researchers have found. Turns out, these four-legged navigators may sense Earth's magnetic field and use it as a compass, scientists are now reporting.
This ability, called magnetoreception, is common in many animals, including some whale species, dolphins and sea turtles, among others. Now, a new study carried out in the Czech Republic and detailed in the journal eLife, suggests adding at least some hunting dogs to this list.