The Black Panther has nothing to do with The Cougar

The term "panther" is generic, it does not specifically refer to a type of wild cat. The term "panther" is most frequently used to refer to three different species of wild cats: Leopards in their black form (melanistic leopards), Jaguars in their black form (melanistic jaguars), and Cougars. The melanistic color variation of the leopard and the jaguar is known generally as the black panther. Both kinds of black panthers have an overabundance of black pigments, but they also have their usual rosettes. Black jaguars of the Americas have been seen in Mexico, Panama, Costa Rica, and Paraguay, whereas black leopards have been seen in Kenya, India, Sri Lanka, Nepal, Thailand, Peninsular Malaysia, and Java. Melanism is brought on by a dominant gene in the jaguar and a recessive allele in the leopard.

As previously mentioned, cougars are sometimes known as "panthers". Even some subspecies are more commonly referred to as this than as cougars. However, you should not confuse them as one. Even though they are both felines, they do not share the same cat family and are significantly distinct. A black panther is a color variation of felines that are a part of the large cat group, yet cougars belong to small cat species. There are no black cougars, they are all black jaguars or leopards.