We visited the Royal Tyrrell Museum this weekend. As Ben and I were looking at a fossilized Tyrannosaurus Rex head (not the one in the image below), I explained to him that it was very very old. 75 million years old! A few minutes later, Ben and his cousin, Ruby were looking at the same fossil. He turned to her and said...
Ben: "Ruby, this dinosaur is a million heads old. And I, am a genius!"