In 1956, scientists brought African and European bees to Brazil, to see if they could mate them. They wanted to do this to make a bee that would make more honey in a hotter place. Scientists called these new bees ""Africanized honeybees"". These bees, however, were very different from regular honeybees. They would suddenly leave the colony and build a hive somewhere else. Scientists found out that the queen would decide to leave after a few months, usually taking half the colony with her. They could even take over European hives by killing the European queen bee and making their own queen bee the "queen". 