If sea cumbers are an example of intelligent design, then God - sorry, an unspecified supernatural intelligence that somehow doesn’t infringe on the First Amendment - needs to lay off the acid. Echinoderms are what you get when you give evolution the number 5 and half a billion years to piss around.

You’ve simply got to love any animal that can vomit up its own bowels crap out its own gills to annoy predators.