Birds and Bees

"Baby birds gaze up at the night sky for hours, watching the slow rotation of the constellatoins.  They find the point about which the stars appear to move, and record it's position with respect to several nearby constellations to maintain a constant heading... Honeybees perform a dance that tells their hivemeates the direction and distance of a food source with respect to the sun: the dancer uses an internal clock to compensate for the movement of the sun between the time she discoovered the source and the time she passes on the information.  If it's cloudy the other bees estimate the direction using the polzarization of light in the sky"

- Karl Von Frisch and James Gould