<div class="tree_txt_unlinked"><p>The
family Cebidae contains the subfamilies Callitrichinae, Cebinae, and
Aotinae, all of which live in South and Central America. Recent genetic
studies suggests these three subfamilies are more closely related to
each other than to any other platyrrhine subfamily. Members of this
group appear to vary considerably, including <em>Aotus</em>, the only nocturnal primate. Some members of this group exhibit prehensile tails. </p>
<p><strong>Citations</strong>: Fleagle 1999, Schneider et al. 1996, and Wildman et al 2009</p>
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