Well, it was Daddy she asked, actually - and of course his response was a very well-considered one ... "Ask your Mum".
A few weeks ago she was asking similar questions and I tried to explain a little bit about evolution and how people gradually evolved from apes. I thought I'd managed to explain it pretty well in simple terms, but she didn't really "get" it, and three days later was asking whether my Mum had been an ape when she was little.
She's just 5 - well, on Friday. How do I tell her in ways she can understand? I believe that if a child asks a question they deserve an answer, but I don't know how to word this one!
Oh, and I don't have a religious faith so don't want to be going down the Adam and Eve route.