Word: mellifera
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Dates: during 2000-2009
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Scientists so far have not located any new invaders, and a panel of experts suggested that the killer bees' aggressively unfriendly personalities will be blunted as they mate with more docile domestic bees. There is no doubt that the Africanized bees, known as Apis mellifera scutellata, have exceptionally nasty tempers. While they are slightly smaller and no more venomous than their European cousins, they go out of their way to attack, and they do so in overwhelming swarms. Ever since a batch of imported Africanized bees was accidentally released near São Paulo by a Brazilian scientist in 1957, they...