Gray Wolf (Canis lupus):
* Average weight: 40-175 pounds (18-80 kilograms)
* Males: Typically larger than females
* Subspecies:
* Eastern wolf: 60-100 pounds (27-45 kilograms)
* Alaskan wolf: 100-175 pounds (45-80 kilograms)
* European wolf: 55-130 pounds (25-60 kilograms)
Other wolf species:
* Red wolf (Canis rufus): 45-80 pounds (20-36 kilograms)
* Ethiopian wolf (Canis simensis): 30-50 pounds (14-23 kilograms)
* Arctic wolf (Canis lupus arctos): 70-150 pounds (32-68 kilograms)
Factors influencing weight:
* Sex: Males are typically larger than females.
* Age: Wolves reach their peak weight at around 3-4 years old.
* Geographic location: Wolves in colder climates tend to be larger.
* Food availability: Wolves that have access to abundant prey will be larger.
It's important to note that these are just averages, and individual wolves can vary greatly in size.