Distinctive chicken has black skin and furry feathers. A male White Silkie chicken is seen in this undated photo. Mark Clifford/Barcroft Media/Getty Images — -- The silkie “black” chicken ...

The Ayam cemani chicken may be the most deeply pigmented creature on earth. Not only are the bird’s feathers, beak, comb, tongue, and toes a striking, blue-ish black, but so are its bones.