Mate choice in fruit flies is rational and adaptive.

A Fisher's combined probability test revealed a significant trend for the five inactive female comparisons to agree with the results of the active female assays ( χ 2 10 =34.2, P =0.0002).

also in 9,775 other papers

We found significant or marginally nonsignificant male preference for the more attractive (as determined in active female assays) female genotype in four out of five tested female comparisons ( Fig. 3b ) and one comparison yielded no significant preference for either female.

also in 448 other papers