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Yoshiro T, FU Calderón and R Quesada. 1990. Ultrastructural study of crystalloids in Sertoli cells of the three-toed sloth (Bradypus tridactylus). Cell and Tissue Research 259: 599-602.

Young, OP. 1981. The utilization of sloth dung in a Neotropical forest. The Coleopterists Bulletin 35(4): 427-430.


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