Table 1.

Mean (±SEM) time (s) spent investigating clean, male-soiled, and female-soiled bedding

Genotype	Clean bedding	Male-soiled bedding	Female-soiled bedding
XX	30 ± 4*	51 ± 7	44 ± 6
XY−	39 ± 6*	74 ± 8	74 ± 12
XXSry	37 ± 6*	69 ± 8	86 ± 10**
XY−Sry	31 ± 3*	55 ± 7	89 ± 10**

*Significantly less time investigating clean bedding compared with time spent investigating male- or female-soiled bedding (p < 0.05).

**Significantly more time investigating female-soiled bedding compared with time spent investigating clean or male-soiled bedding (p < 0.05).