“Macaque fetuses might also have skulls that are just as malleable as human fetuses’ heads, which aids during birth.” Meanwhile, Katharina Pink, PhD, an evolutionary anthropologist and ...

Human babies barely fit through the birth canal. And even after all that trouble, newborns come out … well, helpless. Unlike baby chimpanzees, who are basically tiny adults, human babies spend a whole ...

An examination of ancient and modern skeletal samples gathered from around the world reveals that the shape and size of the female birth canal varies widely among different human populations. These ...