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Northwestern wolves are one of the largest subspecies of wolves. In British Columbia, Canada, five adult females averaged 42.5 kg or 93.6 lbs with a range of 85 lbs to 100 lbs (38.6 - 45.4 kg) and ten adult males averaged 112.2 lbs or 51.7 kg with a range of 105 lbs to 135 lbs (47.6 - 61.2 kg), with a weight range for all adults of 38.6 kg to 61.2 kg (85 - 135 lbs). [9]
The average pack size in North America is eight wolves and 5.5 in Europe. [44] The average pack across Eurasia consists of a family of eight wolves (two adults, juveniles, and yearlings), [37] or sometimes two or three such families, [41] with examples of exceptionally large packs consisting of up to 42 wolves being known. [94]
It is the largest of Old World grey wolves, ... The size of Eurasian wolves is subject to ... with an average of 2,800 wolves being killed annually out of a ...
By the mid-1900s, there were as many as 55 eastern wolf packs in the park, [57] with an average of 49 wolves being killed annually during 1909–1958, until they were given official protection by the Ontario government in 1959, by which time the eastern wolf population in and around the park had been reduced to 500–1,000 individuals.
Average pack size is 7 to 9 wolves, but can vary; like other wolves, the pack consists of a mated pair and their offspring. The pair is usually the only ones that breed. A wolf that has left its pack may travel up to 500 km (310.7 mi) to breed. The minimum breeding age is 1 year, and the average litter size is 4–6 pups. [12]
The cranial length of the adult Arabian wolf measures on average 200.8 mm (0.659 ft), which is smaller than most wolves. [15] Along with the Indian wolf, it is probably smaller than other wolves to help it adapt to life in a hot, dry climate. [16] This is an example of Bergmann's rule, where
[citation needed] Wolf populations only began declining in the Iberian Peninsula in the early 19th century, and was reduced by a half of its original size by 1900. Wolf bounties were regularly paid in Italy as late as 1950. Wolves were extirpated in the Alps by 1800, and numbered only 100 by 1973, inhabiting only 3–5% of their former Italian ...
Size comparison with a human. The average dire wolf proportions were similar to those of two modern North American wolves: the Yukon wolf (Canis lupus pambasileus) [56] [13] and the Northwestern wolf (Canis lupus occidentalis). [56] The largest northern wolves today have a shoulder height of up to 38 in (97 cm) and a body length of 69 in (180 cm).