Mary Allen
Babban ma'anar kare shine ma'anar wari. Sau da yawa ana cewa jin warin kare ya fi na mutane. Amma shin da gaske ne?
Da hancinsa ya kusan manne a kasa, kare yana binciken duniya ta hanyarsa, ta hanyar jin warin. Hanci mai ban mamaki na kare yana ɗaukar mafi yawan bayanai daga duniyar waje. Tare da horarwa, karnuka za su iya koyan mayar da hankali kan kamshi guda ɗaya kawai, wanda ke da amfani mai ban mamaki a gare mu mutane lokacin, misali, farauta da neman magunguna.
Yadda Hanci ke Aiki
Hancin da ya ci gaba da kyau na kare yana da kyawawan ayyuka na ilimin halitta. Danshi saman hanci yana taimakawa wajen tattarawa da narkar da ɓangarorin ƙamshi kuma kare na iya amfani da kowane hanci daban-daban don bambanta tushen warin cikin sauƙi. Karnuka na shakar iska da waje ta hanyoyin iska guda biyu daban-daban, hakan na nufin kare na iya rike kamshi ko da lokacin fitar numfashi, sabanin mu mutane inda kamshin ke gushewa har sai mun sake numfashi.
A cikin hancin kare akwai ramuka guda biyu da suka rabu da guringuntsi. A cikin cavities, akwai abin da ake kira mussels, wanda ke da nau'i-nau'i irin na labyrinth wanda ya ƙunshi kwarangwal wanda aka rufe da tsutsa. Ciwon ciki a cikin hanci yana cika aiki iri ɗaya da ɗanshi a waje. Daga cikin mussels na hanci, ana jigilar kayan kamshi zuwa tsarin kamshi.
Tsarin kamshi shine cibiyar ƙamshin karen, inda akwai masu karɓar ƙamshin da suka kai miliyan 220-300. Daga nan sai masu karbar bayanai su rika isar da bayanai zuwa ga kamshin kwakwalwar kare, wanda ya ninka na mutane kusan sau hudu.
Mugun kamshin mutum, tatsuniya mai dadewa
Sau da yawa ana cewa jin warin kare ya fi na mutane sau 10,000-1,100,000. Sai dai mai binciken kwakwalwa John McGann ya yi imanin cewa ko kadan jin warin kare bai fi na dan Adam ba. A cikin wani binciken (https://science.sciencemag.org/content/356/6338/eaam7263) da aka buga a mujallar Kimiyya (https://science.sciencemag.org/) a watan Mayu 2017, McGann ya yi iƙirarin cewa munanan hankalin ɗan adam. na kamshi labari ne da ya daɗe da wanzuwa tun ƙarni na 20.
“Lokacin da aka kwatanta jin warin ɗan adam da sauran dabbobi masu shayarwa a cikin binciken, sakamakon ya bambanta a fili dangane da waɗanne ƙamshi ne aka zaɓi. Wataƙila saboda dabbobi daban-daban suna da masu karɓar wari daban-daban. A cikin binciken da aka yi amfani da wasu ƙamshi masu dacewa, mutane sun fi kyau a kan wasu ƙamshi fiye da berayen da karnuka, amma kuma sun fi muni ga wasu. Kamar sauran dabbobi masu shayarwa, mutane na iya bambanta ƙamshi daban-daban na ban mamaki kuma muna iya bin alamun ƙamshi a waje. ”
An daidaita don tsira
Dan Adam ya fi karnuka idan ana maganar wari daga rubewar halittu, kamar warin filin kasa, ruwa mara kyau, ko abincin da ya rube ko rube. Abin da suka haɗa shi ne cewa suna ɗauke da wani sinadari mai suna geosmin kuma duk suna iya zama masu cutarwa a gare mu.
“Idan ka zuba digo guda na geosmin a cikin wani wurin shakatawa na yau da kullun, mutum na iya jin warin sa. A can mun fi karen kyau, in ji Johan Lundström wanda masanin neuropsychologist ne kuma mai binciken wari a Cibiyar Karolinska da ke Stockholm.
Dagewa da mai da hankali
Duk da haka, babu shakka kare ya fi kyau wajen rabuwa da kuma dagewa yana mai da hankali kan takamaiman ƙamshi kuma ya fi dacewa da ɗaukar ƙamshi waɗanda ba su da alaƙa da rayuwar nau'in. Abubuwan amfani da hancin kare suna da yawa, kama daga bin diddigin masu laifi, gano kwayoyi da abubuwan fashewa zuwa ƙara ƙararrawa gabanin harin apple.
Ta hanyar bin diddigin wasan, binciken chanterelle, ko aikin hanci, zaku iya motsa hankalin kare ku mafi mahimmanci kuma ku sami kare mai farin ciki. Wataƙila za ku iya amfani da damar kuma ku gwada jin warin ku a lokaci guda?