system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Does birth hurt for other animals as much as it does for humans?
gpt
No. As we evolved to walk upright, our hips became narrower which caused the birthing canal to became narrower as well. We also grew bigger brains which had to be pushed through those narrower birthing canals. This is why humans have more complications with birth than other animals.