Animal "welfare", "rights", "protection", and "interests" and "intrinsic value" are all terms used in the article at http://portlandtribune.com/news/story.php?story_id=132208716415324600 . As you read the article, do you have a clear understanding of what each term means? 

If you're a left a little confused about whether or not they're the same thing, or about the distinctions between these terms, then have a look at the Itune Podcast provided by International Animal Law at http://itunes.apple.com/us/podcast/animal-law/id481422129.