Take your first look at the Sleestaks in Universal Pictures' Land of the Lost, coming to theaters on July 17, 2009 and starring Will Ferrell, Anna Friel and Danny R. McBride.

Thanks to USA Today for revealing this first look at these threatening, lizard-like creatures with a single horn and giant eyes. The most recent evolution of the species is preparing to menace Will Ferrell in a big-screen remake.

Based on the 1974-77 television series, Land of the Lost revolves around forest ranger Rick Marshall and his children, Will and Holly, who are caught in a time vortex while rafting on the Colorado River and transported to a mysterious world populated by dinosaurs.