sidewinding
...that sidewinding is unique to caenophidian snakes like vipers?
...that <b id="mwxw"><a href="./Sidewinding" id="mwyA" rel="mw:WikiLink" title="Sidewinding">sidewinding</a></b> is unique to <a class="mw-redirect" href="./Caenophidian" id="mwyQ" rel="mw:WikiLink" title="Caenophidian">caenophidian</a> <a href="./Snake" id="mwyg" rel="mw:WikiLink" title="Snake">snakes</a> like <a class="mw-redirect" href="./Viper" id="mwyw" rel="mw:WikiLink" title="Viper">vipers</a>?