black-sided hawkfish
... that the largest female black-sided hawkfish in a harem changes sex if the male dies?
... that the largest female <b id="mwAgk"><a class="mw-redirect" href="./Black-sided_hawkfish" id="mwAgo" rel="mw:WikiLink" title="Black-sided hawkfish">black-sided hawkfish</a></b> in a harem changes sex if the male dies?