A very important fact: There is a species of fish that lives in the buttholes of sea cucumbers. Sea cucumber buttholes developed teeth in an effort to keep them out. It did not work.
Well I'm gay, and that was a terrorizing evolutionary thought! 😳🤔
Who lives in a cucumber under the sea? (Unnamed tiny fish!) Safe in the butt hole and most warm is he (Unnamed tiny fish!) ... Sung to the Spongebob tune
If you have questions about sea cucumber butt teeth, ask away! I probably won't know the answer, but I find questions neat. Especially the squiggly bit at the end. 💕? If you see a squiggly bit at the end of a sea cucumber, that's a pearlfish and it's a jerk.
And because you know me, you can see a photo I took of one of those fish on a dive (though. TBH, this particular subspecies lives in pearl oysters instead). : ) It is hard to photograph transparent fish, I can tell you.
How do we account for the evolution of the butt teeth if they didn’t provide an advantage to the sea cucumbers?
i don’t know what i’m talking about but it seems like if they developed teeth that it works at least partially or perhaps it worked at some point in the past