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'Highly mobile eyebrows' helped humans to survive, scientists say

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'Highly mobile eyebrows' helped humans to survive, scientists say
Highly expressive eyebrows may have played a crucial role in helping humans to survive, scientists have found. Our early ancestors sported a pronounced brow ridge, which was “a permanent signal of dominance and aggression”, new research from the University of York suggested. But modern humans evolved to adopt a smooth forehead with more visible, “mobile” eyebrows capable of expressing subtle emotions, the study revealed.
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