The topic is "balls inside body" and steve and bb are regularly distracted into telling posters how dense they are or how they are ruining the world by changing the topic. No more ad hominem comments, please!. I hope we stay on topic so I can learn some more, 'cause this is mostly why I joined up to post.

This non-cavity where they pop into is apparently an extension of something with a latin name under the mons pubis, eh? Any research giving a name to this location?

On a trip to the zoo as a kid, my brother was really impressed at how the kangaroo's balls run up and down like a yo-yo, depending on if he was feeding or about to get kicked by another kangaroo. Surely these go somewhere that has a name too! Of course we don't have a pouch or a tail we can rock back on, but I wonder about parallels.