The honeybee dance language
A honeybee worker who has found a rich food source, when she returns to her colony, will perform a "dance" which contains information about the distance and direction to the food source.
A diagram of how direction in the field is represented in the dance in the hive
Articles pertaining to the dance language from the UCR bee lab. Those with links are available here in pdf format.
A general review article about the dance language
Technical articles about the dance language and its use by honeybees
Visscher, P. K. 2003. How self-organization evolves. Nature 421: 799-800.
Visscher, P. K. and S. Camazine. 1999. Collective decisions and cognition in bees. Nature 397:400
S. Camazine, P.K.Visscher, J. Finley and R.S.Vetter. 1999. House-hunting by honey bee swarms: collective decisions and individual behaviors. Insectes Sociaux 46:348-360.