This is smaller than the world's smallest monkey, the pygmy marmoset, which ranges between . For these reasons, pygmy marmoset calls are seen as babbling behavior. There are a total of 16 call types in pygmy marmoset babbling language. The pygmy marmoset walks on all four limbs and can leap up to between branches. Similar observations have been made in rabbits, marmoset monkeys and in mice. The pygmy marmoset changes the characteristics of its calls when its social environment is changed. A normal series of calls by a pygmy marmoset contains approximately 10 different call types. The common marmoset ("Callithrix jacchus") is a New World monkey. The supply of jackfruit has allowed the marmoset and coati populations to expand. Consider a father marmoset was chimeric in his germ line. The pelage of the marmoset is multicolored, being sprinkled with brown, grey, and yellow. The black-tufted marmoset is monogamous and lives in family groups. The genome of a female marmoset was published in 2014. The common marmoset remains an abundant species and is not currently threatened. The whole-genome sequence of a female common marmoset was published on 20 July 2014.