giant oceanic manta ray
... that the giant oceanic manta ray herds its planktonic prey into a bunch before speeding among them with its mouth open wide?
... that the <b id="mwA-c"><a href="./Giant_oceanic_manta_ray" id="mwA-g" rel="mw:WikiLink" title="Giant oceanic manta ray">giant oceanic manta ray</a></b> herds its <a href="./Plankton" id="mwA-k" rel="mw:WikiLink" title="Plankton">planktonic</a> prey into a bunch before speeding among them with its mouth open wide?