Atlantic titi barrier such as a river and are thus completely genetically isolated from one another). Distinctions between each of the "Callicebus" subspecies are based on coat color. The evolution of these coat colors is termed metachromism. The pigments are produced by melanocytes which deposit the pigments into the medulla of growing hair so that the hair grows with the color of that distinct pigment. The characteristic pigment of the "Callicebus" is eumelanin (dark brown or black) found in the iris, skin, and hair (usually on the forehead, crown and tail). Atlantic titis are opportunistic feeders. In other words, they eat based
Beauty Is Only Skin Deep Skin Deep" was an R&B number-one hit, the Temptations' fifth, and reached number-three on the "Billboard" Pop Singles Chart. It was also a hit in the United Kingdom, making it to #18 on the UK Singles Chart in late 1966. The song never appeared on a regular Temptations studio LP, but was featured on the group's first "Greatest Hits" album. See "The Temptations" perform "Beauty Is Only Skin Deep" at this link Beauty Is Only Skin Deep "Beauty Is Only Skin Deep" is a 1964 song, that became a 1966 hit single recorded by The Temptations for the Gordy (Motown)