Polynesian Rat
...that the Polynesian Rat is used to track human migrations across the Pacific Ocean?
...that the <b id="mwAc0"><a class="mw-redirect" href="./Polynesian_Rat" id="mwAc4" rel="mw:WikiLink" title="Polynesian Rat">Polynesian Rat</a></b> is used to track <a href="./Human_migration" id="mwAc8" rel="mw:WikiLink" title="Human migration">human migrations</a> across the <a href="./Pacific_Ocean" id="mwAdA" rel="mw:WikiLink" title="Pacific Ocean">Pacific Ocean</a>?