Eli5 why animals can lick their butts and not worry about disease
In: 12
It’s risk vs benefit, essentially.
The risk of developing a disease from having a dirty butt is higher than the risk of getting a disease from licking your butt. Most animals don’t have any other good options for cleaning themselves so licking it is. They do get diseases sometimes but it’s better than not cleaning themselves at all.
Humans do have other options so we opt for the least risky choice.
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