The Life of Doris Day, America’s Sweetheart

The More You Know

• When a piece of bread is toasted, it's called the "Maillard reaction."
• Great white sharks are so scared of killer whales that they'll avoid an area for up to a year after spotting one.
• A full jumbo jet tank has enough fuel to drive a car around the world four times.
• Glaciers and ice sheets hold about 69 percent of the world's freshwater.