Lizard venoms are sophisticated, but they typically come in such small doses that they won't cause you any significant harm. And if you do happen to get bit by a Komodo dragon, you'll be able to be distracted from the effects of its venom by the fact that your arm is missing.
--- Carl Zimmer
There are many things we don't know - here are thirteen of them. (It's a dupe, but it's worth reading if you missed it)
Coconut crabs are frigging huge.
Oklo, Gabon was the site of the world's first naturally occurring fission reactions. These reactions are believed to be no longer possible on Earth, but were quite the happening about 2 billion years ago.