What is the grass?

I knew this eponymous blog post would come one day, and here it is.  Alice has officially reached the stage of questions. She's obviously been asking basic questions for a long time, such as "Where are my socks?" and "What is that noise?"  But something has changed in the last couple of days, as she is now asking questions of a higher order that shows she is pondering how the world works.  Here is a sampling of questions she has asked us lately:

• Do ladybugs have mouths and can they talk?
• Do birds have faces?
• Do cats have bones?
• Does my food go in my legs?