Annise Tooley and her boyfriend, Greg Fucich, recently helped their pregnant pit bull Pearl give birth ... a natural pigment that can sometimes mix with a dog's amniotic fluid.

a 1-year-old pitbull mix, is looking for his forever home at Seattle Humane. The young pup has been at Humane for nearly a month. Junior was surrendered to the shelter with two other dogs ...

"I was definitely surprised because they've never had a dog like her, like a bully breed mix, win,” Zupan said. Margot, a pit bull and American bulldog mix, was rescued from Cincinnati Animal ...

The baby pit bull's green coat ... a natural pigment that can sometimes mix with a dog's amniotic fluid. Biliverdin, which colors bile and some bruises, can stain a pup's fur green in the womb ...