Which specific facial feature acts as a reliable identifier for the vervet monkey?

Answer

A prominent white band of fur that arches over the eyes.

The facial region of the vervet monkey is defined by a black skin tone that acts as a dark canvas for specific, high-contrast markings. The most consistent and recognizable feature is the stark white superciliary stripe, or brow band, which arches over the eyes. This white brow, combined with lighter fur around the mouth and chin, creates a distinct visual pattern that separates the vervet monkey from its relatives. These features are vital for visual communication within their complex social troops.

Which specific facial feature acts as a reliable identifier for the vervet monkey?
animalcharacteristicMonkeyPrimate