An extraordinary new study, examining the anatomical differences between dogs and wolves, has revealed our canine companions recently evolved a very small facial muscle allowing them to raise their inner eyebrow. This tiny muscle was not found in wolves, suggesting dogs rapidly evolved this extra tissue to better communicate with humans.
.. Continue Reading How dogs quickly evolved a unique facial muscle to better manipulate humansCategory: Biology
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from New Atlas (Gizmag) http://bit.ly/2IoChXC
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