Problem Statement
Homo erectus displays the first signs of pelvic sexual dimorphism in the hominin fossil record, many of which are still evident in Homo sapiens. This indicates that as hominids were beginning to develop larger brains in utero, which would have led to a more difficult birthing process, they evolved specific adaptations to allow for higher birthing success rates. Additionally, H. sapiens exhibits incredibly unusual behavioral patterns during the process of labor and delivery, namely obligate midwifery, which is the active participation of other individuals during childbirth. This means that there are strong indications that such behavior might have originated with our ancestors as opposed to being a byproduct of modern medicine.