Meriones
...that the burrows of Meriones gerbils can have a combined length of over 30 meters and over 18 entrances?
...that the <a href="./Burrow" id="mwDyc" rel="mw:WikiLink" title="Burrow">burrows</a> of <i id="mwDyg"><b id="mwDyk"><a class="mw-redirect" href="./Meriones_(genus)" id="mwDyo" rel="mw:WikiLink" title="Meriones (genus)">Meriones</a></b></i> <a class="mw-redirect" href="./Gerbil" id="mwDys" rel="mw:WikiLink" title="Gerbil">gerbils</a> <i id="mwDyw">(pictured)</i> can have a combined length of over 30<span id="mwDy0" typeof="mw:Entity"> </span>meters and over 18<span id="mwDy4" typeof="mw:Entity"> </span>entrances?