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1 .This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?
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2 .People have been leaving messages on bathroom walls for thousands of years.
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3 .Just google "ancient Roman bathroom graffiti."
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4 . But we're not the only ones to use latrines for information exchange,
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5 .as two German researchers have confirmed after hundreds of hours watching lemurs pee and poop.
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6 .For science.
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7 .Primatologists Iris Dr?scher and Peter Kappeler concentrated on seven sets of pair-bonded members of a species called white-footed sportive lemurs, at a nature reserve in southern Madagascar.
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8 .Their report is in the journal Behavioral Ecology and Sociobiology.
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9 .Many animals use the same spots repeatedly to do their business, primates in particular.
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10 .For these lemurs, a specific tree becomes the urine and feces focal point.
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11 .And because chemical compounds in their waste transmit information, the so-called latrine tree becomes like a bulletin board to post messages for the rest of the community.
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12 .Based on their 1,097 hours of observations, the researchers conclude that urine and glandular secretions left on the tree trunk are the primary message vehicles.
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13 .Feces mostly just collects on the ground.
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14 .Some urine telegrams are probably signals from a particular lemur to the neighbors that he or she is around.
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15 .But male lemurs upped their latrine visits when potential competitors for females came into their home area.
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16 .So the frequent chemical messages left on the tree probably say in that case, "Buzz off, buddy, she's with me." In lemur.
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17 .Thanks for the minute, for Scientific American's 60-Second Science. I'm Steve Mirsky.
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