>>    Do any of you know of evidence that may support (or not) the notion that
>>    the first crossing of un-related, low-aggression lines often results in
>>    high aggression, which then dissappears (regardless of selection) in
>>    subsequent generations.
>
 
Mike,
 
   I read that the original German bees were not really mean but that it
was the crosses with Italian bees in the mid 1800s that turned out mean.
 
                                                Adrian
 
 
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