Chesapeake Bay Retrievers didn't make the list and Labs did? I gotta think it's only because Chessies aren't very common. My Chessie easily had 4 time the energy of any Lab I ever owned. And talk about focused. If a Chessie could talk, it'd say "throw the stick, throw the stick, throw the stick, throw the stick, throw the GD stick already!!" all day long and well into the night!