Animal Kingdom

I have watched all of the DVDs and the emphasis on animals is a bit much. The vocabulary lists include a lot of zoo animals, pets, and farm animals. I guess he chose these because the images hold the children's attention better, but TJ does not respond to any of these words, and I am worried it actually makes it more boring for him. Even if it doesn't for him, it makes it more boring for me! I would think dog, cat, and maybe horse or bird would have been more than enough! I may try to contact the Your Baby Can Read! people to try and find out how they decided on the word lists.