Gray seal pup, Lundy Island, England

© Henley Spiers/Minden Picture

Happy World Laughter Day!. World Laughter Day

Everyone loves a good giggle, but did you know that laughter is also good for you? Today is World Laughter Day, which highlights the healing benefits of laughing, both physically and emotionally. Some studies have shown that laughing can boost the immune system, elevate mood, and reduce pain. It turns out the old adage is true—laughter really is the best medicine.

Whether the gray seal pup in our homepage image has heard something funny, or is just yawning in the waters off England's southwest coast is debatable. But we think you'll agree, it makes a good mascot for World Laughter Day.