barnacles
... that an adult gray whale may be infested by several hundred pounds of barnacles and whale lice?
... that an adult <a href="./Gray_whale" id="mwB24" rel="mw:WikiLink" title="Gray whale">gray whale</a> may be infested by several hundred pounds of <b id="mwB28"><a href="./Cryptolepas_rhachianecti" id="mwB3A" rel="mw:WikiLink" title="Cryptolepas rhachianecti">barnacles</a></b> and <a href="./Whale_louse" id="mwB3E" rel="mw:WikiLink" title="Whale louse">whale lice</a>?