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An undated handout photo shows a cat and
a brown mouse within an inch of each other. Fear may be linked to the
sense of smell, and can be switched off simply by shutting down certain
receptors in the brain, Japanese scientists have found. In an experiment
with mice, the researchers identified and removed certain receptors on the
olfactory bulb of their brains -- and the result was a batch of fearless
rodents. (Source: Dayoo.com)
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