How do wasps find their way to the hive?
Bees and wasps use sunlight as a compass. They know the
direction of the sun with respect to the direction that they are
flying so they can find their way back.
Bees rely primarily on the Sun as a reference point for
navigation, keeping track of their flight direction with respect to
the Sun, and factoring out the effects of the winds that may be
blowing them off course. The Sun is a difficult landmark for
navigation because of its apparent motion from east to west, but
bees are born knowing how to compensate for that. When a cloud
obscures the Sun, bees use the patterns of ultraviolet polarized
light in the sky to determine the Sun's location. When an overcast
obscures both Sun and sky, bees automatically switch to a third
navigational system based on their mental map of the landmarks in
their home range.