system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why humans newborns/children seem so helpless when compared to other species?
gpt
Because we have a large brain and stand upright (on two limbs rather than four).  Those two needs mean that women's hips need to be large enough to allow a baby's head to pass through, but narrow enough that she can walk.  The only way to reach both limits is to birth babies that are very undeveloped compared with other mammals, and let them do relatively more of their development after birth.