Kalmar "Darwin" yawanci tana nufin Charles Darwin, masanin halitta kuma masanin ilimin halitta ɗan ƙasar Ingila wanda ya fi shahara da gudunmawarsa ga ka'idar juyin halitta ta hanyar zaɓin yanayi. Ayyukansa a kan batun an yi cikakken bayani a cikin littafinsa na 1859 "On the Origin of Species," wanda ya ba da shawarar cewa jinsunan suna tasowa a hankali a kan lokaci ta hanyar zaɓin yanayi. Sunan "Darwin" kuma yana iya yin nuni da fa'ida ga ra'ayin juyin halitta da binciken kimiyya na duniyar halitta.