Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Akwai bambance-bambancen launi da yawa na peafowl na Indiya. Waɗannan ba safai suke faruwa a cikin daji ba, amma zaɓin kiwo ya sa ya zama gama gari a cikin bauta. An fara la'akari da maye gurbin baƙar fata ko Japanned a matsayin ƙaramin nau'in P. c. nigripennis (ko ma nau'in), kuma ya kasance batun da ke da sha'awa a lokacin Darwin. Duk da haka, kawai yanayin bambancin kwayoyin halitta ne a cikin yawan jama'a. A cikin wannan canjin, namiji mai girma yana da melanistic tare da fikafikan baki. Matasa tsuntsaye tare da juyin halittar nigripennis fararen fata ne tare da fikafikan fuka-fuki. Kwayar halitta tana haifar da melanism a cikin namiji kuma a cikin peahen yana haifar da diluted launi tare da alamar farin fata da launin ruwan kasa. Sauran bambance-bambancen sun haɗa da pied da fararen siffofin dukansu sakamakon bambancin allele ne a takamaiman wuri. Hanyar giciye tsakanin namiji kore peafowl, Pavo muticus da mace India peafowl, P. cristatus, yana samar da tsaka-tsakin tsaka-tsakin da ake kira "spalding", wanda ake kira bayan Mrs. Keith Spalding, wani tsuntsu mai ban sha'awa a California. Za'a iya samun matsaloli idan an saki tsuntsayen da ba a san asalinsu ba a cikin daji, saboda yawan rayuwar irin waɗannan nau'ikan da zuriyarsu galibi yana raguwa (duba Dokar Haldane da matsin lamba).  Tambaya: Sau nawa ne bambancin launi yake da tsuntsayen Indiya?
da yawa