Some animals form mouth first, but humans form butt first. I think it’s just because biology said “we need to make a tube for this digestive thingy, pick a side to start from” and that was it reply
so we can have the tool to shit after we receive food from our mom's body i guess. if anything else was formed first it's gonna need to be maintained but anus doesn't
i'm not a med student so this is just my personal opinion bcus i don't feel like researching reply
