The bees' knees

I'm reading an interesting book called Robbing the Bees - A Biography of Honey, the Sweet Liquid Gold That Seduced the World and must share some of my new found knowledge:

"Arriving back at the yard with her foraging spoils, the bee recognizes her own home by the unique pheromonal scent of her queen, an aromatic chemical coat of arms that is relayed from bee to bee and tracked around the hive. Each bee carries a bit of this scent with her, a perfumed security pass that the guards at the entrance identify before waving her through the door. Wrong-smelling trespassing robber bees are turned away, discouraged from pilfering honey that isn't theirs."

"If [the bee] has found a particularly good nectar source and need reinforcements, seh will dance. Bees perform precisely choregraphed dances to communicate fear, alarm, joy, and the location of food and water. In the joy dance, the forager places her front legs on the back of another available bee and shakes her abdomen in a kind of bee conga. The interior of the hive is dark and crowded, so the dance is more of a jubliant mosh pit... Other bees will mimic the mosh movements before flying out to the reported loot."