It's SO cute! 
An all black penguin is one with a non-survival trait mutation! He is LUNCH!
Penguins are a food source for a number of marine mammals, especially leopard seals. These seals hide under ice flows and wait for their prey. Other marine mammal predators are sea lions and orcas.
The penguins aren't without protection though. Their white bellies blend with the snow and sunlight making it difficult for an underwater predator to see them. 
Mr. Kano: Please let us know if this is a racist article because black was mentioned. I think it is and I think that he is a candidate for affirmative action penguin programs.
Hey everybody, steamed made a joke.
Everyone say it with me now.........HAR!

m4ever
Yep - it's black.