Gray Wolf (Canis lupus):
- Body length: 105-160 cm (41-63 inches)
- Tail length: 35-51 cm (14-20 inches)
- Shoulder height: 66-81 cm (26-32 inches)
- Weight: 25-55 kg (55-121 lbs)
Timber Wolf (Canis lupus lycaon):
- Body length: 137-160 cm (54-63 inches)
- Tail length: 38-49 cm (15-19 inches)
- Shoulder height: 71-89 cm (28-35 inches)
- Weight: 36-45 kg (80-100 lbs)
Arctic Wolf (Canis lupus arctos):
- Body length: 95-125 cm (37-49 inches)
- Tail length: 30-40 cm (12-16 inches)
- Shoulder height: 66-79 cm (26-31 inches)
- Weight: 29-45 kg (64-100 lbs)
Mexican Wolf (Canis lupus baileyi):
- Body length: 112-135 cm (44-53 inches)
- Tail length: 31-41 cm (12-16 inches)
- Shoulder height: 67-78 cm (26-31 inches)
- Weight: 23-32 kg (51-71 lbs)
It's important to note that these are average measurements, and individual wolves may vary in size within each subspecies.