“…There have in fact been some scattered discussions of phenotypic uniqueness with respect to individuality (Burgio, 1990;Clarke, 2016;De Sousa, 2005;Elwick, 2017;Godfrey-Smith, 2009;Guay & Pradeu, 2016;Hauskeller, 2004;Hull, 1978;. Uniqueness of specific kinds of phenotypic traits has also been considered, including immunological traits (Burgio, 1990;Ferner & Pradeu, 2017;Medawar, 1957;Minelli, 2020;Pradeu, 2012), morphological traits (Elwick, 2017;Pradeu, 2012), neurological traits (Boniolo, 2005;Pradeu, 2012), and behavioural traits .…”