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.

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The puppy has a striking green coat in the herd.

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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.

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He was named Fifi following a character from the famous animated film Shrek.

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According to Dailymail, the ability of the dog to overreact to a substance called biliverdin is in the placenta.

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This causes the blue hair pigment to be blue, similar to pigments that cause bruises in humans.

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This condition does not affect Fifi's health.Blue on Fifi's fur will fade over time.

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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.