salt marsh snakes
... that salt marsh snakes drink only rainwater?
... that <b id="mwBYE"><a href="./Nerodia_clarkii" id="mwBYI" rel="mw:WikiLink" title="Nerodia clarkii">salt marsh snakes</a></b> <i id="mwBYM">(examples pictured)</i> drink only rainwater?