I really love movies that are trying to say something. I admit the title was pretty confusing. Oh yeah, it makes sense when you learn about the origin, but not much else. I thought this would just be something about animals. I didn't think it would have any deeper meaning. Then again, human beings are technically animals.
The music was great. Don't worry, the Earth will be around for a long time. Humans on the other hand, I'm not so sure about. Look at that bit from George Carlin about it. This is just a nice and soft cartoon.