Know Your Primate: Weid’s black-tufted-ear marmoset

Order: Primates
Family: Callitrichidae
Genus: Callithrix
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.


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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.
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One Response

  1. Do the males babysit because they think the babies might be their kids, or because the kids smell like (and/or have pheromones like) the mother?
    IOW, do you get the feeling this whole knowing about the role of sex in reproduction is just a bit too facile?

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