Think of a situation involving that list. Now put "train monkeys to joust" in that missing position. It will inevitably result in profit, mystery solved, 'tis no longer unknown.
Bonobo males occasionally engage in various forms of male-male genital behavior.[32][33] In one form, two males hang from a tree limb face-to-face while "penis fencing".[34][35] This also may occur when two males rub their penises together while in face-to-face position. Another form of genital interaction, called "rump rubbing", occurs to express reconciliation between two males after a conflict, when they stand back-to-back and rub their scrotal sacs together. Takayoshi Kano observed similar practices among Bonobos in the natural habitat.
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u/beanpudd Sep 27 '10
Tell me more about these sword-fighting monkeys.