* Gray Wolves: 40-175 pounds (18-79 kg)
* Red Wolves: 45-80 pounds (20-36 kg)
* Arctic Wolves: 70-140 pounds (32-64 kg)
* Eastern Wolves: 40-100 pounds (18-45 kg)
Factors affecting wolf weight:
* Sex: Males are typically larger than females.
* Diet: Wolves that have access to abundant prey tend to be larger.
* Location: Wolves in colder climates tend to be larger than those in warmer climates.
* Individual variation: Just like humans, there is natural variation in size among wolves.
It's important to note that these are just general ranges. Individual wolves can weigh more or less than the average.