The marmosets live in the oak tree opposite South America. Like all primates marmosets are very expressive. Facial expressions and vocalisations convey their social status as well as their emotional status.
Marmosets have morphological adaptations to their teeth, their lower incisors are long and very sharp, marmosets use these to gnaw holes in tree bark to produce sap, which they then feed off. If you look closely, you will notice the gnaw marks in our oak tree.
Marmosets live in extended families, typically containing up 15 members, only a few members of these groups are allowed to breed.
Usually the groups contain 1-2 breeding females and 1 breeding male, when the breeding male dies the group will fission with another group that has a breeding male. Breeding members in the group utilise non breeding members to help raise their young, behaviourally suppressing the reproduction of other members in the group.
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