Sixty million years ago, wolves originated from five-toed cat-like animals resembling long legged weasels from which dogs and cats diverged twenty million years ago, while one million years ago, dog and wolf differentiated. Three wolf species exist: gray, red, Ethiopian. Habitat and food abundance determine wolf pack numbers. Wolves settle rank with stares, posturing, and physical interaction. Foxes, Hyenas, Aardwolves, Tasmanian wolf, and South American wild dogs, - Maned, Andean, Falkland wolves actually are not wolves.