Scrapie
The name scrapie is derived from one of the clinical signs of the condition, wherein affected animals will compulsively scrape off their fleeces against rocks, trees, or fences. The disease apparently causes an itching sensation in the animals. Other clinical signs include excessive lip smacking, altered gaits, and convulsive collapse.
Lauridromia intermedia
Crabs in the family Dromiidae are often known as "sponge crabs" due to their habit of carrying bits of sponge on their carapace, clipping them to size and shape. Sometimes instead they carry colonial ascidians and occasionally other objects. "Lauridromia intermedia" usually carries a piece of sponge, holding it in place with the claw-like spines on the end of its fourth and fifth pairs of legs.