The random fact challenge

 For the past few posts I've been signing off by giving a random fact at the end. My challenge is that I can get these facts from anywhere EXCEPT the internet. If I don't manage to think of a random fact without going on the internet, I FAIL. Let's see how long I can go for.

 Here's a random fact for today.

 Random rabbit fact: Because rabbits eat grass they need to digest the leaves for a long time to break down the cellulose. So they digest the food twice, by eating their own droppings.