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Rats
Rats
Rats
pose a larger problem, especially in areas where poor sanitation and
accumulation of garbage provide ideal conditions for them to breed.
Ranging from six inches to a foot long, they nest in basements,
attics, sewers, sub-flooring, open garbage cans and piles of trash.
Active mainly at night, rats contaminate food with disease germs and
filth that can cause acute food poisoning. Worse, they will bite
people - particularly small children who have been left in bed with
milk, juice or other food.
The most common rats are
the black or roof rat and the brown Norway rat. Both species live more
than three years and can grow in excess of five inches.
Rats are responsible for
having spread deadly plagues throughout history. They are still known to
be carriers of various diseases. Beyond their reputation as pests, rats
are widely used as test subjects within scientific communities. They are
particularly helpful in studies concerning physiology and psychology.