Ludes, E., Anderson, J. R. 1996. Comparison of the behaviour of captive white-faced capuchin monkeys (Cebus capucinus) in the presence of four kinds of deep litter. Applied Animal Behaviour Science 49, 293-303.

The group-housed capuchins were given the choice of four types of litter evenly spread out on the floor of the enclosure: woodchips, dried ground corncob, woodwool and garden peat. Peat was associated mostly with locomotion and social contacts, while woodwool was the preferred litter for foraging and play. The ground corncob was avoided by the monkeys.