bignose unicornfish
...that the bignose unicornfish can change colours when frightened or asleep to help camouflage itself from predators?
...that the <b id="mwBo8"><a href="./Naso_vlamingii" id="mwBpA" rel="mw:WikiLink" title="Naso vlamingii">bignose unicornfish</a></b> can <a href="./Chromatophore" id="mwBpE" rel="mw:WikiLink" title="Chromatophore">change colours</a> when frightened or asleep to help <a href="./Camouflage" id="mwBpI" rel="mw:WikiLink" title="Camouflage">camouflage</a> itself from <a class="mw-redirect" href="./Predator" id="mwBpM" rel="mw:WikiLink" title="Predator">predators</a>?