Pectinatella magnifica, a water-dwelling blob, has long confounded scientists trying simply to categorize them.
The brown-green snotty lumps are called bryozoans, and sometimes "moss animals," "dragon boogers," and "ectoprocta," which means, "anus outside," reports Popular Science. The blobs, which are actually whole colonies of tiny organisms, look most like polyps or coral, but they're probably more closely related to mollusks.