The Guiness World Record for smallest dog is held by a 3.8 inch tall Chihuahua named Milly. Pope Gregory IX was apparently a dog person, because he tried to exterminate all cats from Europe. There are roughly 1.5 billion bugs for every one person on the planet! They're more essential to most of our ecosystems than humans. A jockey named Frank Hayes once won a horse race, despite having suffered a fatal heart attack halfway through. His body maintained the proper position as his horse crossed the finish line first. Maya Angelou was the first African American woman to write a non-fiction best seller. The middle finger nail grows the fastest.