Can pit-bulls have longer hair

We just had a litter of pits that was a secured pregnancy my dog are both full breed pitbulls and the female was never out side alone 8 pups were born and one has long hair.. Just unique. We just had a litter of pits that was a secured pregnancy my dog are both full breed pitbulls and the female was never out side alone 8 pups were born and one has long hair.. Just unique.