While at the zoo you see an exhibit with a small group of primates and notice they have wet, snout-like noses, grooming claws, and tooth combs. these indicate a species of:

a species of strepsirhini that retain a rhinarium found only in prosimian primates.  

Explanation:

Many species are found in the wild. Strepsirhini is a species found in the jungle. Rihinarium is related to the shape of the nose. This is the area where fur is not presented and nostrils external opening found in the animals and many mammals. This is the area that makes moisture in many species. Cat and lion-like species come under this category. Sometimes it is called a wet nose and wet snout. The study f these mammals sometimes expose the evolution and taxonomy in these species.  

So that when you see a small group of primates in the zoo, they have wet nose or snouts are species of strepsirhini.

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