“…Within packs, however, interactions are usually peaceful. Within-pack relationships show the following features: wolves generally avoid injurious aggression by using ritualized dominance and submission to establish dominance relationships; formal, linear dominance relationships exist, but some pairs of wolves have frequent agonistic interactions while others rarely do; within-pack aggression is sometimes bi-directional; after conflicts occur, wolves tend to repair disruptions to friendly relationships through reconciliations and third party affiliation; friendly greetings involving friendly submission by subordinates help to maintain social bonds; adult wolves play; and some pairs form especially close, affiliative bonds (Schenkel, 1967;Zimen, 1981;Moran, 1982;Fentress et al, 1987; van Hooff & Wensing, 1987;Cordoni & Palagi, 2008, 2015Cordoni, 2009;Palagi & Cordoni, 2009;Jenks, 2011;Baan et al, 2014). The work cited above, most of it published after Mech's (1970) book, indicates the aptness of his summation of wolves as animals who form close emotional bonds, who are averse to fighting, and whose personalities differ strikingly.…”