#Obstetric constraints in six #monkey genera
'The genera Callithrix, Cebus, and Saimiri exhibit a much tighter fit between the fetal head and the narrowest part of the birth canal than the other monkey genera, actually exceeding the degree of constraint seen in humans.'
#primates #birthcanal #anatomy
https://onlinelibrary.wiley.com/doi/abs/10.1002/ajpa.70092?campaign=woletoc
