Peer-reviewed evidence-base showing primary cross-referencing of sources for recommended minimum snake enclosure dimensions derived from Table 3 and consistent with ≥1 × SL. Arrows direct to previously published material. Green boxes = peer-reviewed citations in Table 3 that specifically relate to enclosure sizes for snakes. Amber boxes = citations of general biological or behavioral nature referenced as supportive information. Grey boxes = citations of grey literature sources referenced as supportive information. Grey boxes indicate non-peer-reviewed (grey literature) publications with recommendations. Cited references in Figure 1: Arena and Warwick, in press [39]; Mendyk and Warwick, in press [5]; Warwick, in press [27]; Warwick and Steedman, in press [40]; Taylor et al., 2021 [59]; Todd and Nowakowski et al., 2021 [60]; Hedley, 2020 [53]; Kubiak, 2020 [54]; Cadenas and Martinez- Silvestre, 2020 [36]; D’Cruze et al., 2020 [52]; Howell et al., 2020 [9]; Learmonth, 2020 [18]; Loughman, 2020 [37]; Spain et al., 2020 [38]; Benn et al., 2019 [61]; Lambert et al., 2019 [17]; RSPCA, 2019 [62,63,64,65]; Warwick et al, 2019 [8]; Bacon, 2018 [66]; Divers, 2018 [49]; Mendyk, 2018 [3]; Rossi, 2018 [50]; RVC, 2018 [67,68]; Warwick et al, 2018 [51]; Newman and Jayne, 2018 [69]; Oonincx et al., 2017 [70]; de Andrade, 2016 [71]; Sears et al., 2016 [72]; Hart et al., 2015 [73]; Jepson, 2015 [47]; Wilkinson, 2015 [48]; Barten and Fleming, 2014 [46]; BVZS, 2014 [74]; Hedley, 2014 [75]; Hyslop et al., 2014 [76]; Martinez-Silvestre, 2014 [77]; Burghardt, 2013 [7]; Warwick et al., 2013 [34]; Miller et al., 2012 [78]; Cannon and Johnson, 2011 [45]; Phillips, 2011 [79]; Breininger et al., 2011 [80]; Fernandez et al., 2011 [81]; Baxley and Qualis, 2009 [82]; FAWC, 2009 [24]; Hamilton, 2009 [83]; Hu et al., 2009 [84]; Sperry and Taylor, 2008 [85]; Astley and Jayne, 2007 [44]; Gerald et al., 2006 [86]; RSPCA 2006 [87]; Brito, 2003 [88]; Shine and Shetty, 2001 [89]; Divers, 1996 [43]; Chiszar et al., 1995 [42]; Gillingham, 1995 [11]; Greenberg, 1995 [90]; Lillywhite and Gatten Jr., 1995 [10]; Warwick, 1995 [28]; Warwick and Steedman, 1995 [32]; McKracken, 1994 [91]; Gillingham and Miller, 1991 [92]; Hart, 1990 [93], 1988 [94]; Warwick, 1990 [95]; Gillingham, 1987 [96]; Jayne, 1986 [97]; Poucet et al., 1986 [98]; Duvall et al., 1985 [99]; Gannon and Secoy, 1985 [100]; Burghardt, 1983 [101]; Henderson, 1980 [102]; Gans, 1974 [103]; Wilz and Bolton, 1971 [104]; Hediger, 1950 [105]; Gray, 1946 [106]; Mosauer, 1932 [107].