What key difference in distribution separates *C. capucinus* from *C. imitator*?
Answer
*C. capucinus* has a more easterly distribution, while *C. imitator* is generally found in western Central America
Geographic separation plays a critical role in delineating the species boundaries between these two closely related white-faced capuchins. *Cebus imitator* is primarily associated with the western regions of Central America, specifically including Costa Rica and parts of western Panama. In contrast, *Cebus capucinus* maintains a distribution that tends toward the eastern side of that geographical area, extending into Colombia and Ecuador. While these lines are subject to ongoing refinement, this general easterly versus westerly demarcation is a primary cue used to distinguish populations based on location.
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