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♦ ¹Seasonal Variations in Diet and Foraging Behavior of Ateles chamek in a Southern Amazonian Tropical Forest, Robert B. Wallace, International Journal of Primatology, Vol. 26, No. 5, October 2005, pp. 1053-1075
♦ ²The sugar composition of fruits in the diet of spider monkeys (Ateles geoffroyi) in tropical humid forest in Costa Rica, Pablo Riba-Hernández, Kathryn E. Stoner and Peter W. Lucas, Journal of Tropical Ecology (2003) 19:709–716