my baby's in the white fluffy clouds

Basically, from what I understand, they signal the position of the sun with what vector or section of the hive they dance in, and something about the amount or type of pollen/flowers from the way they wriggle. Type "bee dance" or "bee wriggle" into google. There's a lot of research on this; I am suprised you didn't know all the stuff about reabsorbing fetuses in rabbits, etc. They recently also found by accident that cuttlefish have a tentacle language of sorts.