Tim Stalnaker asked a couple of weeks back:
>”...robbers eventually become smooth, shiny, and almost black."..... Could
someone explain the physical change in appearance?
Robber bees aren’t just field foragers. They are also combat veterans.
Their smooth shiny appearance comes from fighting with guard bees in the
colonies they are robbing from. Once they’ve been trained to locate a honey
source in other colonies, they may continue searching for additional
colonies to attack.
Regards,
Dick