Pal's siblings

Perky with her puppies; Pal and his siblings.

Pal's siblings are the other golden retriever puppies that were given birth by Perky in "Arthur's Pet Business." It is unknown what happened to them after the episode since only Perky and Pal appeared later in the series. What probably happened is that they were adopted or sold to a pet store, possibly Al's Pet Shop.

Considering how Arthur said Pal is "lucky that he doesn't have a sister" in "The Chips Are Down", it could mean that they are all males. Then again, Arthur could have meant that Pal doesn't have a sister living with him.