We were watching a documentary about life in the ocean.
David Attenborough - For a billion years the ocean was the only place on earth where life existed.
Ella - The ocean was the only planet where life existed for a billion years?!
... Watching the images of typical ocean life. ...
Ella - Were there shops there?
Me - Where?
Ella - There, in the ocean.
Me - No, there's no shops there. Why?
Ella - Oh no! That means they can't buy anything to wear. Or to protect theirselves against sharks!
Me - Who?
Ella - The people who lived in the ocean back then.