Editing Geoffroy's tamarin (section)

== Reproduction ==
[[File:Saguinus geoffroyi 276586965.jpg|thumb|right|A juvenile Geoffroy's tamarin, [[Gatun Lake]], [[Panama]]]]
Geoffroy's tamarin can give birth throughout the year, but the birthing peak is from April to June.<ref name="iucn" /><ref name=colombia/> A single infant or twins can be born, although it is not uncommon for one of the twins to perish within the first few months.<ref name=perspectives2>{{Cite book| author = Garber, P.| author2 = Estrada, A.| author3 = Pavelka, M.| name-list-style = amp | editor = Estrada, A. | editor2 = Garber, P. | editor3 = Pavelka, M. | editor4 = Luecke, L. | chapter = New Perspectives in the Study of Mesoamerican Primates: Concluding Comments and Conservation Priorities | title = New Perspectives in the Study of Mesoamerican Primates| page = 567| isbn = 978-0-387-25854-6 | year = 2006 | publisher = Springer | location = New York}}</ref> The [[gestation]] period is believed to be about 145 days, similar to the [[cottontop tamarin]].<ref name="iucn" /><ref name=colombia/> The interbirth period ranges between 154 and 540 days, with an average of 311 days.<ref name=colombia/> The longer interbirth periods occur after twins.<ref name=colombia/> Infants weigh between {{convert|40|and|50|g|oz}} and are born fully furred.<ref name=colombia/> The infant's fur is colored differently than the parents'; the infant has black fur on the body and tail, with a beige blaze and white face.<ref name=colombia/> The infant coloration reduces the visibility of white, which is associated with aggressive displays by the species.<ref name=smith/>

Both [[Polyandry in animals|polyandrous]] and [[Polygyny in animals|polygynous]] mating occurs, and males contribute heavily to parental care.<ref name=perspectives2/> But typically, only one adult female in a group is reproductively active, and reproductively active females mate with multiple males if given the opportunity.<ref name=social/> Males carry and groom infants more than females do.<ref name=colombia/> Older siblings may also contribute to infant care, although infants prefer to be carried by their parents than their siblings.<ref name=colombia/> Infants become mobile at 2 to 5 weeks, and begin eating solid food at 4 to 7 weeks.<ref name=colombia/> They are independent at 10 to 18 weeks and are fully weaned at 15 to 25 weeks.<ref name=colombia/> Geoffroy's tamarin becomes sexually mature at about 2 years, and can live up to 13 years.<ref name=pic/>