CU MCU ECU SA of horned viper (snake) curled up in sand at dusk. Shots of horned viper's scales, face, tail; it slowly unwinds, moves in segments, flicking tongue. HA MS MCU CU of viper moving across sand at night, in daylight; viper raising head. FA MCU of viper's head. MS MCU of viper, head raised or covered, sand blowing. (44411)