The human body is basically the project from a picky client who wanted both bipedalism and a big head and refused to compromise on either so we ended up with this bullshit
Designer: if you want the head that size, you should really consider knuckle walking so the pelvis can actually get the baby out
Client: NO!!!! REDESIGN THE BABY HEAD SO IT'S SQUASHY
Designer: Have you thought about laying eggs? That might work with your project?
Client: NO!!!! Placental or bust!

@stavvers Designer: Umm… Maybe separate holes for breathing and eating?

Client: We don’t have the budget for that!!

@catnip @stavvers
Designer: What about gills?
Client: Those aren't compatible with the 'lungs' integration we're locked into contract on.