Elaine Cooper in England was extremely surprised to discover that Labrador-like pet dog Milly gave birth to a pack of dogs but was single with green fur, Dailymail reported on February 6.
The puppy has a striking green coat in the herd.
Last month, Milly gave birth to 5 dogs, Elaine Cooper and her husband Mark were surprised to see a uncle with green fur stand out in yellow dogs.
He was named Fifi following a character from the famous animated film Shrek.
According to Dailymail, the ability of the dog to overreact to a substance called biliverdin is in the placenta.
This causes the blue hair pigment to be blue, similar to pigments that cause bruises in humans.
This condition does not affect Fifi's health.Blue on Fifi's fur will fade over time.
Ms. Elaine believes that Fifi is the third case in the world to have natural blue fur.The first case in Spain, the second in Clayton-le-Moors, Lancs.England in 2012.