Atlantic bumper
... that the Atlantic bumper is only found in the Atlantic Ocean because its ecological niche is filled by the only other member of its genus elsewhere?
... that the <b id="mwB-Y"><a href="./Atlantic_bumper" id="mwB-c" rel="mw:WikiLink" title="Atlantic bumper">Atlantic bumper</a></b> is only found in the <a href="./Atlantic_Ocean" id="mwB-g" rel="mw:WikiLink" title="Atlantic Ocean">Atlantic Ocean</a> because its <a href="./Ecological_niche" id="mwB-k" rel="mw:WikiLink" title="Ecological niche">ecological niche</a> is filled by the only other member of its <a href="./Genus" id="mwB-o" rel="mw:WikiLink" title="Genus">genus</a> elsewhere?