'Invisible' Black Leopard Spots Finally Revealed [PHOTOS]

Believe it or not, there is no true species of 'black panther' stalking the dark jungles of the world. Often, they are unusual variants of cougars, jaguars, or even leopards. This certainly holds true for the Malaysian black panther - leopards with sleek black coats and, oddly enough, invisible black spots. Now researchers have determined how to make the unseen seen - a boon for conservation.