The silver fox is a melanistic form of red fox. Melanism is when the animal's coloring is much darker than normal. Interestingly, fox squirrels, who have brownish body fur and reddish tummy fur also have a melanistic form that resembles this. I had a "black" fox squirrel that I hand raised. He lived to be 12 years old, a full ten years longer than he would have in the wild.
Black Lion Looks Amazing - Hmmm. I'm not sure but he looks Photoshopped. If there is a melanistic lion like this out there, I would be appropriately amazed and astounded. Not to mention entirely in love.
Black Beauties: 10 Amazing Melanistic Animals - Page 2 of 2