Lévi-Strauss através de Dan Sperger em "On Anthropological Knowledge"
Parrots and squirrels are famous fruit-eaters . . . and men about to go headhunting feel a relationship to these beings and call themselves their brothers . . . (because of the) parallelism between the human body and a tree, the human head and its fruits (Zegwaard 1959, quoted in Lévi-Strauss 1966: 61).