『昭和日本犬の検討』 犬の研究社, 1936• Retrieved September 1, 2019. The average pack across Eurasia consists of a family of eight wolves two adults, juveniles, and yearlings , or sometimes two or three such families, with examples of exceptionally large packs consisting of up to 42 wolves being known. This canid is genetically close to the and evolved after the divergence of the from the other canid species. Journal of Zoology. Mech, L. Sometimes, the den is the appropriated burrow of smaller animals such as foxes, badgers or marmots. ; Koepfli, Klaus-Peter; Krofel, Miha; Moehlman, Patricia D. 's largely fictional 1963 memoir is widely considered to be the most popular book on wolves, having been adapted into a and taught in several schools decades after its publication. They usually work the hardest at killing prey, and may rest after a long hunt and allow the rest of the family to eat undisturbed. 巣穴は、地面や倒木の下などを掘ってつくられるが、樹洞や岩の割れ目、ほかの動物が使ったあとの巣穴などを利用することもある。
2019年1月6日閲覧。
オオカミを日本の森に復活させるために活動する一般社団法人「日本オオカミ協会」が今週のチャリティー先。