Species: Callithrix kuhlii
Common Name: Weid’s black-tufted-ear marmoset
In some ways, marmosets are highly derived. Their incisors are almost as large as their canines and have thin enamel which causes them to wear down into a chisel like shape similar to rodent incisors. They primarily feed on gums, saps and resins. Weid’s black-tufted-ear marmoset lives in southwest Brazil.
Weid’s black-tufted-ear marmoset also has a uniques breeding system. They live in groups and only the dominant female mates, usually with several different males. Consequently, all the males in the group have a vested interest in taking care of the offspring. This has led to some interesting effects on marmoset biology and behavior.