It's a frosty day at the beach, and a polar bear family is at play among the ice floes. The cubs splash around, all except the youngest, who's nervously hanging onto his dad in the water. He's just not ready to swim on his own. Despite encouragement from Dad, the cub is insistent: "Don't let go " Maybe a flotation device would help? One by one, the little bear adds a lifesaver, a flutter board, a pool noodle, and a rubber ball to his body,...