 Our results thus provide strong theoretical support for the optimality and robustness of intermittent\emph{  L\'evy walks under general conditions .
<meaning-changed>  Our results thus provide strong theoretical support for the optimality and robustness of intermittent\emph{  L\'evy walks under general conditions .
 Our results thus provide strong theoretical support for the optimality and robustness of intermittent\emph{L\'evy foraging hypothesis L\'evy walks under general conditions .