American paddlefish
... that the elongated rostrum of the planktivorous American paddlefish is used like an antenna to locate swarms of zooplankton?
... that the elongated rostrum of the planktivorous <b id="mwCAg"><a href="./American_paddlefish" id="mwCAk" rel="mw:WikiLink" title="American paddlefish">American paddlefish</a></b> <i id="mwCAo">(pictured)</i> is used like an antenna to locate swarms of zooplankton?