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todayilearned

Jun 18, 2020

TIL that as they became domesticated (in a remarkably short time), dogs evolved specific muscles that allow them to raise their inner eyebrows to manipulate human emotions. Dogs who made the facial movement enabled by these muscles are more likely to be adopted from a shelter than those who don't.

alexandra horowitz angie johnston animals assistant professor boston college breeds of dogs canine cognition center case of this new research closest living relatives complex expression different contexts dog cognition centre dogs dogs’ faces dog’s eye dog’s eyes end of the brow above.these researchers eyebrow-raising muscles first biological evidence scientists gray wolves human emotions human eye contact human love humans inner eyebrows juliane kaminski lead author of the new paper levator anguli oculi medialis muscle long evolutionary process muscles new facial muscles new study origin of these facial expressions origins of changes petulant flash of puppy-dog eyes physical dog traits positive responses previous work research retractor anguli oculi lateralis muscle senior research fellow short snouts siberian husky special pair of muscles species straight lines time capsule unbelieving look way ways dogs

todayilearned

Aug 21, 2019

TIL that dogs evolved the specific muscles that give them the ability to raise their inner eyebrows more than 33,000 years ago; as they became domesticated. It's an evolutionary trick used to manipulate humans.

alexandra horowitz angie johnston animals assistant professor boston college breeds of dogs canine cognition center case of this new research closest living relatives complex expression different contexts dog cognition centre dogs dogs’ faces dog’s eye dog’s eyes end of the brow above.these researchers eyebrow-raising muscles first biological evidence scientists gray wolves human emotions human eye contact human love humans inner eyebrows juliane kaminski lead author of the new paper levator anguli oculi medialis muscle long evolutionary process muscles new facial muscles new study origin of these facial expressions origins of changes petulant flash of puppy-dog eyes physical dog traits positive responses previous work research retractor anguli oculi lateralis muscle senior research fellow short snouts siberian husky special pair of muscles species straight lines time capsule unbelieving look way ways dogs

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