Editing Old World monkey (section)

=== Diet ===

Most Old World monkeys are at least partially [[omnivore|omnivorous]], but all prefer plant matter, which forms the bulk of their diet. [[Colobinae|Leaf monkeys]] are the most vegetarian, subsisting primarily on leaves, and eating only a small number of insects, while the other species are highly opportunistic, primarily eating fruit, but also consuming almost any food items available, such as flowers, leaves, bulbs and [[rhizome]]s, insects, snails, and even small vertebrates.<ref name="EoM370-405" /> The [[Barbary macaque]]'s diet consists mostly of leaves and roots, though it will also eat insects and uses cedar trees as a water source.<ref name="cedar">{{cite journal|doi=10.1111/j.1523-1739.2001.99019.x|title=Effects of Water Availability and Habitat Quality on Bark-Stripping Behavior in Barbary Macaques |year=2001 |last1=Ciani |first1=Andrea Camperio |last2=Martinoli |first2=Loredana |last3=Capiluppi |first3=Claudio |last4=Arahou |first4=Mohamed |last5=Mouna |first5=Mohamed |journal=Conservation Biology |volume=15 |issue=1 |pages=259–265 |bibcode=2001ConBi..15..259C |s2cid=86080812 }}</ref>