The Catahoula was developed in Louisiana's Catahoula Parish to find and hold feral hogs and to gather semi-wild cattle. Selection favored working ability over looks, so size and build vary widely, from roughly 50 to 95 pounds. Many have a merle "leopard" coat and glass-blue or mismatched eyes, but brindle and solid colors are common too, and the short coat needs only basic brushing.
Catahoulas tend to be intelligent, independent and deeply loyal, with a protective streak and a strong work drive. Many are reserved with strangers, and some are picky about other dogs or small animals. That means daily vigorous exercise, early socialization and firm, reward-based training. Many dogs labeled Catahoula are mixes, so each dog's own personality matters more than the label.