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Africanized bee
Africanized bees, also known as killer bees, are hybrids of the African honeybee with various European honeybees descended from 26 Tanzanian queen bees accidentally released in 1957 in Southern Brazil from hives operated by biologist Warwick E.
Note: The above text is excerpted from the Wikipedia article "Africanized bee", which has been released under the GNU Free Documentation License.
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