Why do some children like to eat dirt and mud? Two of my children (the second and the fifth) insisted on putting dirt and mud in their mouths. Now, I see their cousin likes to do the same thing.

My oldest son attempted to eat pinecones on a few occasions. He decided he no longer liked them, when he got some pinecone stuck in his gum. It had to be removed by the dentist.

I wonder what other strange things children like to eat.