In an older episode of No Such Thing As A Fish the Qi-Elves talked about a research which showed that dog’s prefer to do their businesses aligned to the magnetic fields. Well, this got me curious and quickly I found what I was looking for.
In other words, under stable magnetic conditions the dogs would always poop and pee while facing either north or south. This provides convincing evidence that dogs can sense magnetic fields and are sensitive to even small magnetic-field variations, say the researchers.
As a dog owner I often wondered about the selection-process, but I think I finally have a reason to put the iPhone’s Compass.app to good use and do some research on my own. Let’s see how this goes.