Yes, I did know.
It's because there are dog shows Sponsored by Purina.
National Dog Shows | Purina.com Dog Shows | Purina.com
PURINA, always the innovator, is again the leader in the dog world by supporting this prestigious event and is proud to showcase some of the world's most beautiful, healthy dogs in The National Dog Show Presented by Purina. Purina supports the health and wellness of all dogs through its food and pet care products and by promoting responsible pet care, humane education, canine health research and the positive bond between people and their pets.