Answer to Last Weeks Question of the Day... "why Do We Have Bones?"

So here's last weeks answer to Why do we have bones?
Bones provide support for our bodies and help form our shape.
I was under the impression the "ask me questions about every and anything all the time even if it doesn't make sense of I already know the answer" phase didn't start until 5 years old.  I don't know where I heard this from or why I believed it but either way, that's not what happened.
Its not like intended to starting reading the encyclopedia in preparation of the question phase anyway, but I still feel like somehow I'm off my schedule.  I had no idea I was supposed to have so much useless knowledge. 
My massive, awesome, all knowing mommy brain needed a break. 
No more questions.  No more. 
Until maybe next week.