Cortical spacing for ocular dominance and orientation pinwheels in primates, carnivores, scandentia and rodents. Column 2 is calculated as the square root of 1/pinwheel density. References for the column on the left [1] and on the right [2] are provided below. Human: (Adams, Sincich et al. 2007) for [1]; (Yacoub, Harel et al. 2008) for [2]. Macaque: (Adams, Sincich et al. 2007) for [1]; (Obermayer and Blasdel 1993) for [2]. Cat area 17: (Lowel 1994) for [1]; (Bonhoeffer, Kim et al. 1995) for [2]. Cat area 18: (Lowel 1994) for [1]; (Bonhoeffer and Grinvald 1993) for [2]. Owl monkey: (Takahata, Miyashita et al. 2014) for [1]; (Xu, Bosking et al. 2004) for [2]. Bush baby: (Xu, Bosking et al. 2005) for [1], [2]. Marmoset: (Roe, Fritsches et al. 2005) for [1]; (Liu and Pettigrew 2003) for [2]. Squirrel monkey: (Adams and Horton 2003) for [1]; (Obermayer and Blasdel 1997) for [2]. Ferret: (Law, Zahs et al. 1988) for [1]; (Rao, Toth et al. 1997) for [2].