Average life span for wolves in the wild up to 13 years in wild (usually 6 to 8 years) up to 16 years in captivity.
Average weight for females is 27 to 36 kilograms (60 to 80 pounds) and for males 30 to 50 kilograms (70 to 110 pounds).
Average height is from 66 to 81 centimeters (26 to 32 inches) at the shoulder
They have gray, black or white fur color.
There are 2 widely recognized species of wolves in the world, the red and the gray. However, there is debate over how many species of wolf exist and if there are different subspecies of the gray wolf.
Wolves are excellent hunters and have been found to be living in more places in the world than any other mammal except humans.
Wolves are legendary because of their spine-tingling howl, which they use to communicate. A lone wolf howls to attract the attention of his pack, while communal howls may send territorial messages from one pack to another. Some howls are confrontational. Much like barking domestic dogs, wolves may simply begin howling because a nearby wolf has already begun.