KEEPER SPOTLIGHT: Here we are behind the scenes in the penguin den area. From the outside of the exhibit, you can see the burrows that lead to their dens. Each pair has a den and each den is marked with the penguins' names, and if they have a chick, then information about the chick is marked too. The den area is lit with a red light which mimics a low-light environment—perfect for penguin napping. Tyronne and Oliva have a chick that hatched on February 16 and PJ and Blanca have a chick that hatc