What colour would puppies be if a red Staffordshire bull terrier mated with brindle Staffordshire?

It's impossible to say for sure what color puppies would result from a red Staffordshire Bull Terrier mating with a brindle Staffordshire Bull Terrier. Here's why:

* Genetics are complex: Coat color in dogs is determined by multiple genes, each with different variations. The combination of genes from both parents determines the puppy's final coat color.

* Brindle is a pattern, not a color: Brindle is a pattern of stripes or streaks over a base coat color. The base color could be black, red, fawn, or even white.

* Recessive genes: Even if a parent doesn't show a certain color or pattern, they could carry the genes for it and pass it on to their offspring.

Possible Outcomes:

* Red puppies: If the brindle parent has a red base coat, there's a good chance some puppies will be red.

* Brindle puppies: If the red parent carries the brindle gene, or if the brindle parent has a strong brindle pattern, some puppies might be brindle.

* Other colors: Depending on the other genes involved, the puppies could be black, fawn, or white.

To get a better idea of possible colors, consider these factors:

* Parents' lineage: Knowing the colors of the parents' parents and grandparents can give a better indication of possible coat colors.

* Breed standards: The Staffordshire Bull Terrier breed standard typically allows for red, brindle, black, and fawn colors, but it's always a good idea to research the breed standard for specific information.

Important Note: Always consult with a veterinarian or experienced breeder for expert advice regarding canine genetics and breeding practices.