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