What is the most interesting / uncommon fact you know?

Baseball is the only game in which the defense has the ball.

The nutrient that mosquitos get from the blood of other mammals is not present in humans. We are just junk food for them.

If I tell it here there will be too many people to kill.

If you detonate a nuke in nyc most people will die from flooding

Ned has a pet centipede named Tarantula

Scientists have discovered a jellyfish which can live forever. Turritopsis dohrnii is now officially known as the only immortal creature. The secret to eternal life, as it turns out, is not just living a really, really long time. It's all about maturity, or rather, the lack of it.