You've seen chimps on T-V cuddling up with people, giving big kisses, and generally being adorable. What few people realize is that these sweet creatures have one thing in common: they're all babies.

How often is too often when it comes to your pet's vaccinations? It's a question more and more pet owners are asking these days. Mounting debate about the need to vaccinate animals annually, along with concerns about a possible link between vaccines and rare cancers, may leave many pet owners confused about how often to visit the vet for vaccinations.