They dress themselves up in seaweed! I also think there is a type of beetle that does something similar, but with things that make it look more bejeweled, but I beastly can't remember what it's called...
I am a writer, artist and creative education enthusiast from the West Country. I write poetry, fiction and children's TV scripts, as well as being rather fond of inventing strange site-specific projects and working with illustrators and musicians. I have worked extensively in schools and museums at home and abroad.