system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do humans have to wipe after they poop when practically every other animal does not need to?
gpt
Because we walk upright so have big butt muscles which mean our anus is actually right up in between them leading to problems with cleanliness when defecating. This is exacerbated by the sit on toilet when we probably squatted before. Though we also have complex dexterous hands which can over come the problem by directly or with the use of a tools- (leaves scraping tools, paper etc )removing any mess that might attract parasites etc.