spider water beetles
... that spider water beetles can only breathe in moderate to fast-moving bodies of water?
... that <b id="mwB0c"><a href="./Ancyronyx" id="mwB0g" rel="mw:WikiLink" title="Ancyronyx">spider water beetles</a></b> <i id="mwB0k">(pictured)</i> can only breathe in moderate to fast-moving bodies of water?