Humans have been compared to other species in terms of sexual behavior.Neurobiologist Robert Sapolsky constructed a reproductive spectrum with opposite poles being tournament species, in which males compete fiercely for reproductive privileges with females, and pair bond arrangements, in which a male and female will bond for life.While the term has several meanings, the most frequent usage refers to two people exploring whether they are romantically or sexually compatible by participating in dates with the other.With the use of modern technology, people can date via telephone or computer or meet in person.In modern times, emphasis on the institution of marriage, generally described as a male-female bond, has obscured pair bonds formed by same-sex and transsexual couples, and that many heterosexual couples also bond for life without offspring, or that often pairs that do have offspring separate.Thus, the concept of marriage is changing widely in many countries."Most students do not have a definite plan for where they will live or work after graduation, and stayovers are a way for couples to have comfort and convenience without the commitment of living together or having long-term plans." The study, "We're not living together: Stayover relationships among college-educated emerging adults," is in the current issue of the .
However, one particularity of the human species is that pair bonds are often formed without necessarily having the intention of reproduction.Now, a researcher has found that people in their 20s are redefining dating by engaging in "stayover relationships," spending three or more nights together each week while maintaining the option of going to their own homes. Census indicates that young people are choosing to marry later and cohabitating more often than past generations.Changes in relationship formation and dissolution in the past 50 years have revealed new patterns in romantic relations among young adults. Now, a University of Missouri researcher has found that people in their 20s are redefining dating by engaging in "stayover relationships," spending three or more nights together each week while maintaining the option of going to their own homes.Historically, marriages in most societies were arranged by parents and older relatives with the goal not being love but legacy and "economic stability and political alliances", according to anthropologists.