sleepy sponge crabs
... that sleepy sponge crabs carry sponges on their back as camouflage, and have even used the sole of a shoe for that purpose?
... that <b id="mwBZ4"><a href="./Dromia_dormia" id="mwBZ8" rel="mw:WikiLink" title="Dromia dormia">sleepy sponge crabs</a></b> carry <a href="./Sponge" id="mwBaA" rel="mw:WikiLink" title="Sponge">sponges</a> on their back as <a href="./Camouflage" id="mwBaE" rel="mw:WikiLink" title="Camouflage">camouflage</a>, and have even used the sole of a shoe for that purpose?