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1 .This is Scientific American 60-Second Science. I'm Sophie Bushwick. Got a minute?
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2 .A vacation always runs more smoothly when you plan ahead.
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3 .And we humans aren't the only ones who make travel arrangements.
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4 .A new study shows wild orangutans choose the direction of their trip in advance and then communicate their plans to others.
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5 .The work is in the journal PLOS ONE.
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6 .Mature male orangutans emit loud roars called long calls, audible more than a kilometer away.
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7 .Studies suggested that long calls can announce the caller's identity, attracting females while warding off rival males.
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8 .But do they transmit travel plans as well?
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9 .To find out, researchers monitored 15 wild males.
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10 .While resting or feeding, the orangutans turned in different directions, and produced a total of over 200 long calls.
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11 .When they eventually began to move, it tended to be in the direction they had faced while vocalizing.
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12 .Additional long calls signaled changes in direction.
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13 .By planning and sharing their itineraries, the males influenced their peers.
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14 .Females tended to move towards the caller's path, while subordinate males avoided it.
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15 .For these apes, an impressive roar blazes a clear trail.
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16 .Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.
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