It may not be easy being green, but it is easy being cute if you're this unique newborn pup.
According to , a three-year-old Golden Retriever from the Scottish Highlands named Rio recently gave birth to a litter of nine pups—including a little green one. The mint-colored dog was aptly named Forest by his owner, Louise Sutherland.
"It was all hands on deck but then as the puppies started to arrive, we noticed that one of the puppies had green fur. We couldn't believe it," Louise told . "When we checked it out later we found out it is very unusual and to do with the placenta."
According to , veterinarians think the cause is exposure to biliverdin, a green bile pigment found in the placenta, which can stain a pup's coat when mixed with the mom's amniotic fluid.
Luckily, there are no known health risks involved with the condition and the color won't last forever—it typically resolves itself within weeks of birth. "The color has faded quite a bit already and will be gone soon, I'm told," said Louise.