Research  Chimp fad shoves grass in butts + Monkeys attracted to videos showing conflict

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Like humans, monkeys are attracted to videos showing conflict
https://www.eurekalert.org/news-releases/1090473

INTRO: Have you ever wondered what kind of video content would most grab the attention of monkeys? A new study of long-tailed macaques suggests the monkeys seem to like some of the same kind of content that humans do: videos featuring aggression and individuals they know.

“Humans and macaques are both social animals who have a fundamental need to belong,” said Brad Bushman, co-author of the study and professor of communication at The Ohio State University. “It’s not surprising that they both would be most interested in the video content that may help them navigate relationships in their groups.”

The study was published online recently in the journal Animal Cognition. It was led by Elisabeth H.M. Sterck, professor of animal behaviour and cognition at Utrecht University in The Netherlands... (MORE - details, no ads)


May hint much about the deep origins of pretentious fads in human society...
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Chimps develop fashion trend by shoving grass in their ears — and in their butts
https://www.livescience.com/animals/land...heir-butts

Chimpanzees are running around with grass in their ears and butts at the Chimfunshi Wildlife Orphanage in Zambia. This is the second time a bizarre fad-like behavior has gripped the sanctuary's chimps, but wearing the grass accessories in their butts is a new twist.

INTRO: Researchers first reported the grass-in-ear behavior in 2014. At the time, only one group of chimps living at the Chimfunshi Wildlife Orphanage in Zambia exhibited the behavior. Now, another of the sanctuary's groups has independently adopted the behavior and introduced a daring new style — wearing the grass in their rectums. The researchers described the new behavior in a study published July 4 in the journal Behaviour.

[...] Social animals often copy behaviors from one another. These behaviors are typically centered around finding food or some other critical survival skill. However, researchers have also occasionally documented temporary fads spreading through populations without an obvious benefit.

[...] The researchers suspect that captivity played a role in the trends. Wild chimps, which haven't been observed engaging in such seemingly frivolous behaviors, fill their days finding food and have to deal with many more challenges than captive chimps, which typically have their meals delivered.,, (MORE - missing detail)
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