The UC Davis Veterinary Medical Teaching Hospital says it has spent the last six months treating several dogs with the same potentially life-threatening injury.
The dogs come from Marley's Mutts, an animal rescue operation in Kern County that rehabilitates and finds homes for dogs from high-kill shelters. Three of the dogs had bilateral mandibular fractures - or broken lower jaws.
That injury can end with the dog's lower jaw being completely removed or the animal being put down.
The first Marley's Mutts dog treated at Davis was ultimately adopted into a new, permanent home.
Another dog, a German shepherd named Bear, was spotted by his owners on the Internet and was soon reunited.
The dogs' surgeries were paid for by Marley's Mutts' donation base.