The article presents the materials of a large-scale study devoted to contraceptive behavior female athletes reproductive age, representing different sports. It has been established that most commonly used types contraception, in all age categories, are: interrupted intercourse, spermicides, barrier contraception (male condoms), hormonal patches. rarely are (single-phase and three-phase combined...

In many species, mating with multiple males confers benefits to females, but these benefits may be offset by the direct and indirect costs associated with elevated mating frequency. Although mating frequency (number of mating events) is often positively associated with the degree of multiple mating (actual number of males mated), most studies have experimentally separated these effects when exp...