Zoetis Inc. (NYSE: ZTS ) is fundamentally a companion animal business whose valuation is mostly derived from the higher-growth, higher-margin companion animal franchise, which focuses on dermatology, parasiticides, and osteoarthritis (OA) pain management for cats and dogs. While remaining aAnalyst’s Disclosure:I/we have no stock, option or similar derivative position in any of the companies mentioned, and no plans to initiate any such positions within the next 72 hours. I wrote this article myself, and it e ...