Com podem apreciar a la fotografia principal, així com a la fotografia de dalt (dreta), el primer mico té una piga a la cella dreta i la cara recoberta de pèl curt i gris, mentre que el segon mico no té piga i la cara la té recoberta de pèl marró fosc.
As seen from the lead photo of this post, as well as the one above (right) the first monkey has a mole on its right eyebrow and has grey and shorter hair around the face, while the second monkey one has no mole and dark brown hair around the face.