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This is Scientific American 60-Second Science. I'm Sophie Bushwick. Got a minute?

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A vacation always runs more smoothly when you plan ahead.

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And we humans aren't the only ones who make travel arrangements.

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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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The work is in the journal PLOS ONE.

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Mature male orangutans emit loud roars called long calls, audible more than a kilometer away.

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Studies suggested that long calls can announce the caller's identity, attracting females while warding off rival males.

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But do they transmit travel plans as well?

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To find out, researchers monitored 15 wild males.

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While resting or feeding, the orangutans turned in different directions, and produced a total of over 200 long calls.

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When they eventually began to move, it tended to be in the direction they had faced while vocalizing.

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Additional long calls signaled changes in direction.

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By planning and sharing their itineraries, the males influenced their peers.

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Females tended to move towards the caller's path, while subordinate males avoided it.

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For these apes, an impressive roar blazes a clear trail.

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Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.

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