Now in their 20s, Logan and Wil are engaged ... and they celebrated by re-creating one of their toddler tea parties from 2003 ...

Fellow dog lovers King Charles and Queen Camilla missed out on an opportunity to share their own new pets for the holiday. In ...

Kate Middleton and Prince William marked National Pet Day with a surprise picture of their dog, Orla, while Sarah Ferguson shared photos of Queen Elizabeth's corgis to mark the occasion.

She's an integral part of the family, but she's rarely seen. On "National Pet Day", Prince William and Princess Catherine ...