Table 1.

Initial odor choices of OTWT, OTKO, or CF-1 strain (CF-1) female mice (n = 30) presented with the odors of two equivalent males (male A and male B)

Day	Genotype	Choice	% Initially choosing male odor A	P
1	WT	Male A − male B	50	NS
1	WT	Male A + ♀ − male B	80	0.001
2	WT	Male A − male B	80	0.001
1	KO	Male A − male B	50	NS
1	KO	Male A + ♀ − male B	60	NS
2	KO	Male A − male B	50	NS
1	CF-1	Male A − male B	50	NS
1	CF-1	Male A + ♀ − male B	80	0.001
1	CF-1	Male A − male B	80	0.01

On day 1, females were presented male odor A either with (♀) or without the odor of an estrous female. On day 2, females were presented with male odors A and B again. NS indicates no significant difference in choice.