Wolves

Kenai Peninsula WolfCanis lupus alcesAlaskaExtinctIt was a very large wolf. The determination of the species and the size of the wolf was done using recovered bones.

Texas Grey WolfCanis lupus monstrabilisTexas and Northeast MexicoExtinctThis wolf used to live in Texas and northeastern Mexico. Its members were usually small and dark coloured. They were sometimes white.

New Foundland WolfCanis lupus beothucusNewfoundlandExtinctThis wolf was a medium sized wolf that was almost pure white.

Southern Rocky Mountain WolfCanis lupus youngiMountainous regions of Colorado, Utah and Nevada.ExtinctA larger subspecies. Full canine colour spectrum represented, though blended pelages predominate. First subspecies to be recognized in North America. Hunted legally in parts of Canada.

Mongollon Mountain WolfCanis lupus mogollonensisCentral Arizona and New Mexico.ExtinctTheir colour was usually dark with some whites.

Hokkaido WolfCanis lupus hattaiJapanese island of HokkaidoExtinctA smaller subspecies. Became extinct in 1889 as a result of poisoning campaigns.

Honshu WolfCanis lupus hodophilaxJapanese islands of Honshu, Shikoku, and KyushuExtinctA very small subspecies. Became extinct in 1905 from a combination of rabies and human eradication efforts.

Northern Rocky Mountain WolfCanis lupus irremotusThe northern Rocky mountains of the United States, and southern Alberta.ExtinctMedium to large grey wolves.

Dire WolfCanis dirusThe Dire Wolf co-existed with the Grey Wolf in North America for about 100,000 years.ExtinctThe Dire Wolf had a larger, broader head and smaller brain-case than that of a similarly-sized Grey Wolf, and had teeth that were quite massive.

-A social hierarchy i.e. Alpha males and females.

-Top of the food chain, apex predators.

-They pair in couples.

Other than that I can't think of anything off the top of my head.
both mammals with canine teeth

Linnaeus gave the black wolves of Europe the binomial nameCanis lycaon, under the assumption that the species was distinct from grey and white coloured wolves. Cuvier and other naturalists largely followed his example.[4] Black wolves were considered rare in France, but common in Southern Europe at the time, with black wolf populations south to the Pyrenees apparently outnumbering other color morphs. They also occurred in the mountains of Friuli (Italy) and around Kotor (Montenegro). Black wolves were also reported in Siberia as the Vekvoturian Mountain-wolf.[5] Colonel Smitherroneously believed that the so-called "Rossomak" of the Lenas in Siberia was of the same variety.[6] However, in fact, "Rossomak" in Russian exactly corresponds with the English "wolverine", a mustelid species, in English (Gulo gulo in Latin). Black wolves were considered rare in northern Europe, however, Dr Höggberg, a medical practitioner at Karlstad mentioned five black wolves being killed in the Swedish province of Värmland in 1801. These wolves were completely black and were bigger than the more common grey variety. Their pelts were considered exotic enough to be sold for 3-4 times the price established for more common colour morphs.[7] Also, the last wolf in Scotland, supposedly killed by MacQueen of Pall à Chrocain is usually narrated as having been black.[8] Cuvier noted that European black wolves differed little in size from other colour morphs, but exceeded them in physical strength.[6] Charles Hamilton Smith wrote that black wolves were generally less aggressive than ordinary kinds, and interbred with dogs more readily.[5] In Serbia (South-Eastern Europe, Balkan peninsula) indicated that on 17.11.2012, a black wolf was killed at Stara mountain.

Black wolves were occasionally reported in Asia. The "Derboun" of the Arabian mountains and southern Syriawas a small black wolf which apparently was considered by the Arabs to be more closely related to dogs, as they freely ate its flesh like any other game, unlike with regular wolves which had an unpleasant odour.[5] Black wolves in Tibet are known locally as chanko nagpo, and are considered bolder and more aggressive than the pale coloured variety. Small populations inhabit Ladakh.[9]

Although the black wolves of America were originally given the same binomial name as those in Europe, Anselme Gaëtan Desmarest believed that they were a different species.[10] Historically, the natives of the banks of the Mackenzie River, Saskatchewan Riverand southern Canada apparently never viewed black wolves as a distinct species.[4]In his 1791 book Travels, William Bartrammentioned seeing black wolves among the few red wolf populations he saw in Florida. He stated that they were "perfectly black", except the females which were described as having a white spot on the breast. Bartram also described a "black wolf-dog of the Florida Indians" which was identical to the local wolves, save for the fact that it could bark, and could be trusted around horses.[5] The fur of a black wolf was once considered by the natives of New Englandto be worth over 40 beaver skins. A chieftain accepting a gift of black wolf fur was seen as an act of reconciliation.[11] The black wolves of the Southern United States were considered a separate species to the northern kind due to differences in colour and morphology, and were named clouded or dusky wolves (Canis nubilus).[4][12] The dusky wolves occurred in Missouri Territory, and were intermediate in size between common wolves and coyotes. They apparently produced a foul odour.[13] On January 15, 2009, a black male wolf from "Mollie's Pack" in the Yellowstone National Park's Pelican Valley was weighed in at 143 lbs, making it the largest Yellowstone wolf on record.[14]

The red wolf (Canis Rufus) became an endangered species because of predator control programs and loss of habitat. It became endangered in 1970
People hunted them for their fur .there was a lot of deforestation (destruction of forests) in their area.

Also there was predators.