It's no secret we're deep in an underwater creature phase here. It's all about whales, squids and everything in between. While I missing digging out some good fiction books, I do love the amount of fact that he's devouring right now.
These are a few of our favorites that keep coming back from the library.
If you would like a four year to explain the subject material for you ... in depth... I might have a deal for you. ;)