Izinja zihlala zibonisa isimilo esinokubonakala, ukutsho nje okuncinci. Umzekelo olungileyo ngumkhwa we khotha umchamo wezinye izinja, into eqhelekileyo kwezi zilwanyana. Nangona ngokokubona kwethu kuyinto engathandekiyo, inyani kukuba kubo sisenzo esineenjongo ezicacileyo. Kwaye ngayo bafumana ulwazi malunga nabanye.
Ukuqonda konke oku kufuneka sazi ubukho be i-vomeronasal organ okanye ilungu lika-Jacobson, esebenzisa inja xa impumlo yayo ingakwazi ukucazulula ulwazi. Ime kwithambo lomhlanzo, phakathi komlomo kunye nempumlo, kwaye umsebenzi wayo kukudlulisela olu lwazi kwingqondo, apho isilwanyana sinokuhlalutya khona iipheromones kunye neemolekyuli ezikhoyo kumchamo. Ngale ndlela, fumanisa ukuba enye inja ishushu, isini sayo, uhlobo lokutya elikutyayo, njl.
Ezinye iingcinga zikhomba ku Umba wezempilo. Ngamanye amaxesha, xa injana yohlulwe msinyane kunina, ifumana lo mkhwa njengendlela yokucoca inkunkuma, into edlulela nakwezinye izinja.
Njengoko sibona, imalunga isimilo sendalo ngokupheleleyo leyo yinxalenye yokuziphatha koluntu kwesi silwanyana. Ngesi sizathu, akufuneki siyithethise inja yethu xa iveza lo mkhwa, nanjengoko iyinxalenye yobuntu bayo. Nangona kunjalo, kukho amanqaku amancinci amancinci, kwaye oko kuxhomekeke kwizinto ezithile kunokuba yingozi kuye.
Ngokomgaqo, ukuba inja igcina ishedyuli yayo yokugonya ihlaziyiwe kwaye ingabinangxaki zempilo, khotha umchamo ezinye izinja akufuneki zibangele nakuphi na ukuphazamiseka. Nangona kunjalo, ukuba amajoni akho omzimba buthathaka, ubeka esichengeni fumana isifo ngomchamo wabanye. Kwimeko apho kuya kufuneka sikuphephe ukunxibelelana ngqo nenkunkuma yezinye izilwanyana.