Panther

A panther is a feline with a different, all-black drawing, usually leopard or jaguar. Several cats have abundant local variations in drawing and fur, the result of mutations in local populations, comparing King leopard, but the all-black forms of leopards and jaguars are stable element in the population and are found throughout the species' range.

Description
The Panther is one of the most mysterious members of the cat family, characterized by a black, unspotted coat of fur. Most closely related to the leopard, this creature is a low cost and low research level cat. Similar in many respects to the Mountain Lion, the Panther has slightly better attributes making it a viable option if you are looking to increase the attributes without greatly affecting the overall resource cost of your creature.