Obvious Facts People Didn’t Realize Were True Until Much Later in Life

I’m not sure whether I knew this next fact or not. I’m definitely certain that I never really thought about it one way or the other, but if someone had asked me 10 minutes ago whether or not birds live in nests, I’m not sure I would have known the answer.

But this brings up another question: where do birds live? Where do they sleep? For that matter, do they even sleep? I’ve never seen a sleeping bird. So I guess that wherever they are living, other than nests, they’re pretty well hidden from people like me.