Assortative mating wani nau'in nau'in mating ne wanda daidaikun mutane sukan zabar ma'aurata masu halaye irin nasu. A wasu kalmomi, daidaikun mutane sun fi dacewa su yi hulɗa tare da wasu waɗanda ke da alaƙa iri ɗaya ta jiki, ɗabi'a, ko dabi'a. Wannan na iya haifar da haɓakar mitar wasu halaye a cikin yawan jama'a akan lokaci. Mating daban-daban na iya faruwa saboda dalilai daban-daban, ciki har da abubuwan zamantakewa, al'adu, da kuma kwayoyin halitta.