How ‘Puppy Dog Eyes’ Evolved 

to Make Humans Melt

“The evidence is compelling that dogs developed a muscle to raise the inner eyebrow after they were domesticated from wolves,” said lead researcher Juliane Kaminski, PhD, in a press release. “We also studied dogs’ and wolves’ behavior, and when exposed to a human for two minutes, dogs raised their inner eyebrows more and at higher intensities than wolves.”

first for women


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