Reason 1. Keep sweat out of eyes
Reason 2. Same reasons dogs to. Facilities communication with other humans
Dogs have fur all over their body and face. So do they have or even need eyebrows? The function of eyebrows in humans is to prevent sweat from running down your forehead and into your eyes. As dogs don’t sweat why would they even need eyebrows
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Ways in which dogs use their eyebrows to communicate may include;
your dog raises his brows, to indicate they see something of interest.
lowered eyebrows mean they are confused by a sound or trying to figure out what you want. This can also express your dog is a bit angry.
one eyebrow raised says your dog is questioning or puzzled.
a pouting dog will lower their eyebrows, showing their feelings are hurt.
an angry or suspicious dog will have his eyes partly closed, with his eyebrows pulled down