from
Roth, E.D (2003) "‘Handedness’ in snakes? Lateralization of coiling behaviour in a
cottonmouth, Agkistrodon piscivorus leucostoma, population". ANIMAL BEHAVIOUR, 2003, 66, 337–341
doi:10.1006/anbe.2003.2228
Used in Teaching Elementary Statistics with JMP by Chris Owen, SAS Press 2011
