>
> >Maybe it's the other way around.  Workers are fed longer on a higher
> protein diet and develop specialised tools such as pollen baskets, shaped
> mandibles, a barbed sting that the queen lacks.


My reasoning is that bees must have evolved from an ancestral stock in
which every female was fully fertile.  So full fertility and a nonsuicidal
stinger would seem to be the evolutionary default.

-- 
Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com

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