Arno the Sumatran orangutan looking in the direction he will be travelling in while vocalizing. (AP Photo/Perry van Duijnhoven) |
Sasquatch vocalizations have been recorded from all over North America, but very little is known about what the creatures are actually communicating, or why they are doing so. Perhaps now some light might be shed on this interesting question by studying another ape, the orangutan.
Researchers have now correlated the calls of male Sumatran orangutans with their directions of travel. They observed females repositioning themselves to be closer to the male's line of travel, and also non-dominant males moving out of the way of the dominant males heading their way.
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