this post was submitted on 23 Sep 2023
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Option 1) An on/off switch for my uterus without medical intervention. Periods are bullshit.
Option 2) Night vision for my eyeballs so I can dodge dog toys during midnight bathroom ventures.
Yeah... they are...
been wondering; why does it happen to humans only? I mean, I've never seen a cow or any mammal going through any of this...
Well now you made me go and google it. Some snippets from the top results:
Also:
Well that’s just metal af.
Can you provide some links?
https://en.m.wikipedia.org/wiki/Menstruation_(mammal)#:~:text=in%20human%20females.-,Evolution,have%20caused%20menstruation%20to%20arise.
https://eusci.org.uk/2020/04/09/why-do-humans-and-so-few-other-animals-have-periods/
Disclaimer: I can’t vouch for the factuality of any of it. It’s just the top search results.
"Elephant shrew" ... I feel seen.
Holy crap, evolution is wild.
There’s a nice SciShow vid on that
Now that I think about it - cows do have uteruses. Do they get periods in some way too?
The tldr is not every species with a uterus menstruates.
Most animals' bodies don't convert into a child bearing state until they're already pregnant. Dogs and cats for example don't grow breasts (or line their uterus) until they're pregnant. Humans (and a few other species) evolved to just be ready to raise a child at any time, which results in permanently developed breasts and a continuous refreshing of a uterine lining.