Word: healthmen
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...watching and photographing rats, Public Healthmen learned many things which they hope can be used as anti-rat measures. For example, when the food supply decreases, rats devour each other. This fact emphasizes the value of cleaning up tidbits that rats like to eat, says Lanier. Another observation, which may come in handy when PHS shows its movies to audiences: rats appear highly susceptible to emotional upsets. Repeated frights shorten their lives, e.g., insistent, inescapable noises, such as tapping on glass, can drive a rat to death...
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