Black a lucky colour for cats
Usually, being an odd colour is bad news in the animal kingdom, but for some cats, such as jaguars and leopards, being melanistic seems to be a good idea.
Researchers at the National Cancer Institute and the University of Maryland think studying jaguars and how the gene that regulates the colour of their fur might also change other aspects of their body, such as possibly making them more resistant to disease. Making wild black cats very lucky indeed!
Of course, this doesn't explain why some big cats, like lions and tigers, don't have a melanistic phase. Except, of course, in furry fandom!