Why do Zebra's eat hay?!?!

This is the question that Delaney Liu woke me up at 3 a.m. to ask. She does not remember it, so I am thinking maybe she was dreaming out loud.( although she did say "Momma.....Momma! and waited for me to respond before asking!) She has had a bad cold, so she has been bunking with me so daddy, JiaJia, and GuaGua can get their sleep. We have our first homestudy visit tonight. After working on it all day I can now say that "this house has been cleansed!!" Yeah! Here's hoping for speedy visits and a speedy social worker!!