If you eat a polar bear's liver, you will die of a vitamin A overdose. Lego makes more tires than any other company in the world. Including actual tire companies. All the American flags on the moon have been bleached white by radiation from the sun. A blue whale's heart is roughly the size of a Volkswagen Beetle, and its aorta is large enough for a human to crawl through. There are 18.6 million vacant houses in the United States. That's enough for every homeless person in America to have six. Baboons will occasionally adopt feral puppies and raise them as pets. In 1977, researchers detected a strong radio signal from space that lasted 72 seconds. It hasn’t been detected since. The planet Neptune has barely completed one orbit since it was discovered in 1846. Pluto hasn’t completed a dull orbit since its discovery and won’t until March 23, 2178. The combined weight of all ants on Earth is about the same as the combined weight of all humans. It takes our brains 80 milliseconds to process information. That means we are all living ever so slightly in the past.