Wallace argues that in The Fox (1923) and Kangaroo (1923) 'the human being is an animal. He discusses the meaning of this equivalence by examining the differences suggested through the narrative form of the two works.

Wallace collectively views three of Lawrence's 1920s novels: Aaron's Rod, Kangaroo and The Plumed Serpent. He suggests that they 'represent a departure or leave-taking from the illusionist conventions of the realist novel to which, despite marked stylistic-modernistic idiosynracies, Lawrence's earlier fiction had adhered ... In each case the exiled, nomadic protagonist finds in an alternative culture - Italy, Australia, Mexico - a context in which to cease to care about conventional human values, to lapse into a state of isolation or, in the key word of Kangaroo, "indifference".'