Polar bears find cure for boredom

(CNN) -- If zoo animals could talk, they might sound something like kids on summer vacation -- I'm bored! There's nothing to do! It's up to zookeepers to find ways to keep animals active and interested. CNN's Jeanne Moos checked out one example in the depths of the polar bear pool.

CNN NewsPass VIDEO What do you get for three polar bears who seem to have everything? CNN's Jeanne Moos has some answers (July 2) Play video