“…Similarly, in some skinks and lizard species, compounds with a semiochemical function are secreted onto the surface of the feces, probably coming from cloacal glands, as feces are deposited by the animal. These feces have been found to allow conspecific and sex discrimination in several skinks ( Bull, Griffin & Perkins, 1999 ; Bull, Griffin & Johnston, 1999 ; Bull et al, 2000 , 2001 ), lacertids ( Aragón, López & Martín, 2000 ; Nisa-Ramiro et al, 2019 ), iguanians ( Duvall, 1979 , 1981 ; Duvall, Graves & Carpenter, 1987 ; Labra et al, 2002 ; Wilgers & Horne, 2009 ) and geckos ( Carpenter & Duvall, 1995 ). Fecal pellets may even be used for territorial scent marking ( Duvall, Graves & Carpenter, 1987 ; Carpenter & Duvall, 1995 ; López, Aragón & Martín, 1998 ).…”