V

Vertical leaping and clinging

Arboreal locomotion that involves jumping among vertical tree limbs and branches (as compared to running along the tops of branches). Tarsiers are a good example.

Vestigial

referring to body parts that are remnants of parts that were more fully developed and functional in an earlier stage of evolution in the species.

Vocalizations

sounds produced primarily by the throat and mouth. Primate vocalizations include a wide variety of hoots, whistles, grunts, etc.