Long before we, as a species, were categorized as Homo sapiens, Plato proclaimed humans to be “featherless bipeds.” As a retort, Diogenes grabbed a chicken, plucked it, raised it aloft, and sarcastically declared “Behold: Plato’s man!” Not be outdone, Plato added “with flat nails” to his description. Aristotle later weighed in on the matter by declaring that we are communal beings who possess language, which we use to divide the world into categories available for rational and political inspection. Though a final decision was never reached in ancient Athens, one thing is certain: these dudes were obsessed with definitions. Considering that museums began as collections of objects grouped by kind, it could be said that they too are products of the urge to collapse reality into neat taxonomies. However, the world is a bit messier. While most humans share psychical features, we do not necessarily share similar minds, histories, or desires—and the reduction of these social characteristics into set and didactic narratives has led museums to misrepresent, and even marginalize, aspects of society and nature at the cost of privileging other figures. The group exhibition “Metamorphosis – Let Everything Happen to You,” curated by Chus Martinez at Castello di Rivoli, attempts …