Photo: AFP
It turns out our pet pooches have evolved human-like eyebrow muscles, which let them make the sad faces that melt our hearts, according to a new study published on June 17 in the Proceedings Of The National Academy Of Sciences (PNAS).
It involved dissecting the cadavers of domestic dogs and comparing them to those of wild wolves, our best friends' ancestors, whom they branched off from around 33,000 years ago (don't worry, no animals were killed for the research).
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