>... After three months bees still congregated there
> looking for water. Curious, isn't it? Could/can/do they pass
> on location information between generations?
 
Allen Latham speculated on the existence of 'control bees', special bees
that looked just like all the others, but which made the decisions for the
hive, perhaps had a longer lifespan, and somehow maintained a 'hive mind'.
 
There are mysterious, inexplicable things that anyone who spends time with
bees will observe, things which may not be repeatable.
 
As for erasing some kinds of bee memory, I heard somewhere that exposure
to high doses of CO2 will do that.
 
Allen