Good question, friend!
The answer is because it has no practical function and I felt like it
Nope, she'll never have to give birth, she got her tubes tied
I have prehistoric creatures in my fantasy novel Stonesong and so far, no one seems to think they’re jarring or that they don’t make sense. I just give them names that fit within the context of the world and describe them from the character’s perspective as I would any other fantasy creature...