You walk 10 miles South.
You then walk 10 miles East.
You then walk 10 miles North and arrive back where you started.
A bear attacks you.
What colour is the bear?
@CriticalCupcake I could be 10 + 10/(2Pi) miles north of the south pole in which case my 10 miles east would be on a line of latitude circling the south pole. In this case, as there are no bears native to the south pole, the bear must have been transported by people so it could be any colour.
I'm going with purple.