During each closing sequence, one sees, for an instant, Bill and Jill with non-glamoury black sunglasses. That is during a sequence where they are putting on their silver reflective sunglasses to prepare for dance. In other words, they wear sunglasses under their sunglasses.
Despite the show taking place in an animal world with the actual world map there may or may not have existing countries just like in real life. There are some villages and towns but no actual cities.