When you're a mama penguin with lots (and lots) of little ones, the days can melt together in a blur. Monday: swimming. Tuesday: sliding. Wednesday: waddling. And on and on. Mama loves her babies so much. Do they know, she wonders, just how much? As it turns out, they do--because they love her just as much! And to show it, they surprise her with a thoughtful gesture of their own on Sunday.