![]() ![]() It had a notice at the beginning of the video stating it might be inappropriate for some users, however after clicking a button reading "I understand and wish to proceed" the video starts.Īfter Newsweek flagged the video on March 15, YouTube removed it for violating their violent and graphic content policy.Ī YouTube spokesperson told Newsweek that the platform has established policies around animal abuse. The video continued for nine minutes and had over 8,500 views, and 141 likes. It attempted to run away, however, the dog caught up to it. Later on in the video, the monkey could be heard screeching in pain as the dog continues its attack. The monkey could be seen clutching to the milk bottle as it is attacked by the dog. The person then proceeded to film as a huge dog began repeatedly biting the monkey. The disturbing video, posted on February 22, showed a baby macaque monkey being hand-fed from a bottle, with a caption reading "feeding the baby monkey to make sure he don't run away." (2016) The First Smile: Spontaneous Smiles in Newborn Japanese Macaques ( Macaca fuscata).ĭisclaimer: This article does not necessarily reflect the views of AsianScientist or its staff.A YouTube video showing a baby monkey being abused and tortured remained live on the video-sharing platform for nearly a month. The article can be found at: Kawakami et al. It may be the case that many mammal infants display spontaneous smiles, in which case smiling would have an older evolutionary origin. “There are case reports about mice laughing when they get tickled and dogs displaying facial expressions of pleasure. The question that now remains is whether smiling is unique to monkeys and primates. The team interpreted that spontaneous smiles facilitate the development of cheek muscles, enabling humans, chimpanzees and Japanese monkeys to produce smiles, laughs and grimaces. ![]() Rather, the smiles are more similar to submissive signals (grimaces) rather than smiles (play faces). Interestingly, this study suggests that spontaneous smiles do not express feelings of pleasure in chimpanzees and Japanese monkeys. Some researchers have argued that infants’ spontaneous smiles exist to make parents feel that their children are adorable and to enhance parent-child communication. A major difference, though, is that the smiles were much shorter.” “There were two significant similarities they both happened between irregular REM (rapid eye movement) sleep, and they show more lop-sided smiles compared to symmetrical, full smiles. “Spontaneous macaque smiles are more like short, lop-sided spasms compared to those of human infants,” Kawakami said. Fumito Kawakami and colleagues observed 58 spontaneous smiles from seven dozing macaque infants, all of which showed spontaneous smiles at least once. “Since we see the same behavior in more distant relatives, we can infer that the origin of smiles goes back at least 30 million years, when old world monkeys and our direct ancestors diverged,” said study co-author Professor Masaki Tomonaga of Kyoto University’s Primate Research Institute.ĭuring their experiments, lead author Dr. In fact, newborn Japanese macaques, which are more distant relatives of humans in the evolutionary tree, also exhibit spontaneous smiles. These facial expressions, called spontaneous smiles, are considered the evolutionary origin of real smiles and laughter.Īccording to the study, spontaneous smiles do not only happen in the infants of higher-order primates like humans and chimpanzees. When human and chimp infants are dozing, they sometimes show facial movements that resemble smiles. ![]() ![]() 10, 2016) – Japanese researchers have shown that smiling, in primates in particular, may be a more common and evolutionarily significant gesture than once thought. ![]()
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