Eyebrow

The eyebrow is an area of thick, delicate hair above the eye that follows the shape of the lower margin of the brow ridges of some mammals. The most recent research suggests that in humans its primary function is to allow for a wider range of ‘non-verbal’ communication. It is common for people to modify their eyebrows by means of hair removal and makeup.Eyebrows often thicken with puberty.Eyebrows can be used to convey emotion, such as surprise.One of Audrey Hepburn's trademarks was her thick eyebrows.A young adult with hair between the eyebrows - a unibrow The eyebrow is an area of thick, delicate hair above the eye that follows the shape of the lower margin of the brow ridges of some mammals. The most recent research suggests that in humans its primary function is to allow for a wider range of ‘non-verbal’ communication. It is common for people to modify their eyebrows by means of hair removal and makeup. A number of theories have been proposed to explain the function of the eyebrow in humans including that its main function is to prevent moisture, mostly salty sweat and rain, from flowing into the eye, or that clearly visible eyebrows provided safety from predators when early hominid groups started sleeping on the ground Recent research, however, suggests that eyebrows in humans developed as a means of communication and that this is their primary function. Humans developed a smooth forehead with visible, hairy eyebrows capable of a wide range of movement which are able to express a wide range of subtle emotions – including recognition and sympathy.