User:Phxntxsos/sandbox

Edit (Feb 3)

Consequences[edit]
During the hominin's early evolution, brains became larger, due to increased intelligence, and bipedalism became the norm. The consequences of these two changes in particular resulted in painful and difficult labor due to the increased favor of a narrow pelvis for bipedalism being countered by larger heads passing through the constricted birth canal. This phenomenon is commonly known as the obstetrical dilemma.

Consequences
Prehistoric fossil records show that early hominins developed first bipedalism before being followed by an increase in brain size. The consequences of these two changes in particular resulted in painful and difficult labor due to the increased favor of a narrow pelvis for bipedalism being countered by larger heads passing through the constricted birth canal. This phenomenon is commonly known as the obstetrical dilemma.