What kind of paper is it? Is it just an informative overview of animal testing or are you writing a thesis paper (persuasive paper).
The best thing to do would be to have the title be a restatement of your main argument, such as, "Animal Testing: An Unpleasant Necessity" or "Animal Testing: Necessary Evil or Just Evil?" or "Necessary Evils: Why Lab Mice Have Saved More Lives Than Seat Belts."
If the paper is just an overview, try something like, "The Full Story: Pros and Cons of Animal Testing in the Cosmetics Industry," or "Protestations of Science: How Animal Testing Helps and Hurts."
I am have been an adjunct professor. These are the types of titles that I'd see on high-quality papers.