This essay addresses three aspects of Barad's views about meaning and normativity: her 'post-humanist' insistence that the agential cuts that constitute phenomena need not incorporate human beings as observers, measurers, speakers, or concept-users; her alternative account of the objectivity of measurement, which also specifies the meaning of what she calls 'theoretical' concepts; and her claim...

Against the background of humanities writing about animal agency, this article examines primatologist Tetsuro Matsuzawa’s work with his ‘research partner’, the chimpanzee Ai, and her conspecifics at the Kyoto University Primate Research Institute and in an outdoor laboratory in Guinea from 1976 to 2016. This latest chapter in the history of Japanese primatology describes an attempt at synthesiz...