ABSTRACT
Long-term research on great apes is now revealing that a wide range of variation exists both w i th in and between species i n reproductive parame ters such as age at menarche, age at first bir th, and interbirth interval. However, a clear understanding of what ecological factors may influence these female reproductive parameters and the relative importance of each factor has been lacking from great ape studies. We know much more about the ecology of reproduction i n female humans than we do for any of the great ape species.
