House Cockroaches
The following is true; the whole story can be found on p. 101 of the
July Scientific American:
S.C. Johnson Corporation, maker of Raid, breeds 80,000 roaches a week to
test its products on. It maintains a number of different breeds, including
some pesticide-resistant ones. One of the most resistant is called HRDC.
These almost unkillable roaches are so named because they were collected
from the halls of the House of Representatives in the District of Columbia.
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