ɪnstˈɛd, ˌɛvəlˈuːʃən hɐz ʃˈeɪpt saɪkəlˈɑːdʒɪkəl mˈɛkənˌɪzəmz, sˈʌtʃ ɐz ɪmˈoʊʃənz, ðæt pɹəmˈoʊt sˈɜːʔn̩ ˌɔːltɹuːˈɪstɪk bᵻhˈeɪvjɚz.
Instead, evolution has shaped psychological mechanisms, such as emotions, that promote certain altruistic behaviors.