MCU of polar bear cub pouncing on ice with front legs, sticking paw into hole, breaking through to water and splashing in. MCU of polar bear cub (1 1/2 yrs) digging hole in snow as second cub watches; first cub abandoning hole, second cub running to occupy it. MCU of polar bear cub (1 1/2 yrs) picking up bone, carrying it to hole in snow, dropping it in, sticking entire head into hole, losing balance and tipping over. MCU of polar bear cub (1 1/2 yrs) chewing on and playing with bone in snow, batting it around and chasing it. CU of two polar bear cubs chewing on and having tug-of-war over piece of animal hide. (6229)