Cumberland Valley Animal Shelter answers your pet-related questions. Also this week: 'Seinfeld' and do dogs really cough?

Q: Sometimes I’ll catch my cat chasing her tail. She’ll literally fall over herself and run in circles. Is she nuts? Should I be concerned? A: Occasionally, cats can be so in-tune with ...

One thing both pets like to do, though, is to chase their own tails. ASPCA science advisor Dr. Stephen Zawistowski explains why cats and dogs like chasing their tails. Produced by Will Wei Follow ...