Besides the big toe, what do tamarins have instead of flat nails on their digits?
Answer
Claws
A defining shared trait of the Callitrichidae family, which includes tamarins and marmosets, is the structure of their digits. Specifically, these primates are noted for having claws on all their digits except for the big toe. This contrasts with the typical flat nails found on many other primate groups. This anatomical feature is a key characteristic that helps define this specialized twig within the broader New World monkey grouping.
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