What is this mama?

While at Forest Park in Massachusetts, Nicholas picked up a pinecone and said, "What is this, mama?" At first I was surprised by the question but as I thought about it I realized that we don't have those in Florida. I told him it was a pinecone and proceeded to put it in the stroller. When we found another, he put that one in to. So impressed with the pinecones was he that when I threw them out of the stroller on the sidewalk at the airport, he put them back in without me knowing. The security guard asked if I wanted to keep them when we went through. Nicholas shouted yes and so back they went into the stroller!