Misalai na juyin halitta na raba abinci

Masana ilimin halitta na juyin halitta sun haɓaka samfuran ra'ayi daban-daban don bayyana juyin halitta na halayyar raba abinci - "[d]an bayyana shi azaman canja wurin abinci ba tare da tsayayya ba" daga mutum ɗaya mai motsa abinci zuwa wani  - tsakanin mutane   da sauran dabbobi.  

Misalai na raba abinci sun dogara ne akan ƙa'idar juyin halitta gaba ɗaya. Lokacin da aka yi amfani da su ga halayyar ɗan adam, ana ɗaukar waɗannan samfuran reshe ne na halayyar mutum. Masu bincike sun haɓaka nau'ikan samfuran raba abinci da yawa, waɗanda suka haɗa da abubuwan da suka faru kamar Zaɓin dangi, sadaukarwa, sata mai haƙuri, hadin gwiwar rukuni, da siginar kuɗi mai tsada. Zaɓin dangi da samfuran sadaukarwa na raba abinci sun dogara ne akan ra'ayoyin juyin halitta na zabin dangi da sadaukarwa. Tunda tushen ka'idojin waɗannan samfuran ya haɗa da lafiyar haihuwa, ɗayan mahimman ra'ayoyin waɗannan samfuran shine cewa tarin albarkatu mafi girma yana ƙara lafiyar haihuwa. An yi la'akari da raba abinci a matsayin muhimmiyar ci gaba a farkon juyin halitta na ɗan adam.

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