Pets are a frequent subject of art. A few weeks ago, I came across a book that reviewed dogs in centuries of art. Francisco Goya's "The Dog" is at the Prado in Madrid. a discussion of this piece is at Wikipedia and can be seen here. American artist, Andrew Wyeth had one named, "Ides of March."
The painting above is a scene of a Golden Retriever played out nearly every time I leave the house. She looks around the corner as I go to the door asking, Can I come? Are you taking me? Let's go play. The painting is oil on linen 12 x 16 in.