コモンマーモセット
メスのコモンマーモセットのゲノムが2014年に報告され、新世界ザルの中で初めて完全なゲノムがわかった種となった。ゲノムのサイズは2.26 Gbで、21,168遺伝子を含んでいた。文節的重複 英:Segmental duplicationsにより、全138 Mbの of non-redundant sequences (4.7% of the whole genome), slightly less than observed in human or chimpanzee (~5%), but more than in orangutan (3.8%).
Common marmosets employ a number of vocal and visual communications. To signal alarm, aggression, and submission, marmosets use the "partial open mouth stare," "frown," and "slit-stare", respectively. To display fear or submission, marmosets flatten their ear-tufts close to their heads. Marmosets have two alarm calls: a series of repeating calls that get higher with each call, known as "staccatos"; and short trickling calls given either intermittently or repeatedly.