The Geoffroy’s marmoset[1], also called Geoffrey’s marmoset, white-headed marmoset, or tufted-ear marmoset is a marmoset native to the forests of eastern Brazil, where it is native to Minas Gerais, Espírito Santo, and Bahia.
- Geoffroy’s marmosets are small primates, only around 20 cm long, with a tail of around 29 cm.
- Females typically weigh around 190 grams, while males weigh between 230 and 350 grams.
- The body is usually blackish or dark brown. The tail is surrounded by black and gray bands.
- Adults have white foreheads, temples, cheeks, and throats. Also, adults have black tufts of hair in front of their ears.
- Juveniles differ from adults because they lack both ear tufts and white markings on the face.
- Instead, juveniles grow their ear tufts at around two weeks and have full adult markings by five months.
