What does the Portuguese nickname *barrigudo* signify for common woolly monkeys?
Answer
A pronounced abdominal area dedicated to processing high volumes of fibrous food.
The substantial build and pronounced abdominal area of the common woolly monkey earned them the Portuguese nickname *barrigudo*, which translates directly to "big belly." This noticeable physical feature is linked to their physiological specialization required to process the large volume of fibrous fruit and leaves that constitute the main portion of their diet. This digestive requirement necessitates a significant internal capacity, resulting in their stocky body shape that distinguishes them from lighter primates.

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