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Yadda za a gani da kare: halaye na ganinsu
Karnuka ne mu abokai na haihuwa da kuma rayuwa a cikin iyalai. Ba abin mamaki ba cewa mutane ne haka sha'awar da cikakken bayani game da abin da ke cikin jikin su da kuma yadda shi da ayyuka, abin da yake tunani na hudu kananan kafafu Pet. Karatu duk wannan dogon da suka wuce da masana kimiyya, dabbobi, zoopsychologists.
Kamar yadda wani mutum wanda yana dabbobi na gani aiki na samar da wani musamman jiki - da idanu. Ya ke a Guy da dukan dabbobi akwai biyu daga gare su. Da muhimman hakkokin tsarin da gabobin da wannan a cikin mutane da kuma karnuka. Duk da haka, akwai bambance-bambance.
Yadda za a gani da kare da rana?
Cikakken hangen nesa da kullum ba fiye da wani mutum. Amma ga mai predator cewa shi ba ya taka a babban rawa. A tsarin da idanu, kazalika da dukan jiki, kamar yadda ta yiwu saba ga sauran dalilai saboda su hanyarsa ta rayuwa.
Features Vision Color karnuka - daya daga cikin manyan al'amurran da suka shafi cewa dami mutane. Ba haka ba da dadewa, an gano cewa, karnuka za su iya bambanta da launuka, kuma hangen nesa su ne ba baki da fari, kamar yadda a baya tsammani. Duk da haka, duk da wannan, kuma ba da wannan a matsayin namu. An sani cewa a cikin ido, akwai na musamman tsoka mai amsa sigina Kwayoyin, wanda da daban-daban siffar, da ake kira "Cones" da "sanduna". Na farko shi ne alhakin da ji na launi, na biyu - don fitar da hoto dare hangen nesa. A Cones ne na uku irin: ji da wani ja-orange launi range, yellow-kore da kuma blue-Violet. A karnuka kasa na wadannan Kwayoyin a general, gaba daya bace farko irin. A wannan batun, bambanci tsakanin ja da rawaya-kore, da waɗannan dabbobi ba su sani ba.
Ba zato ba tsammani, da filin ra'ayi a karnuka elongated, m (a cikin mutane - zagaye), da kuma ido axis ne directed layi daya ga juna, da kuma diverge a wani kwana na game da 20 digiri. Wannan muhimmanci yana faɗaɗa Pet ganuwa. Hakika, breeds da gajeren hancinsa, adadi ne mafi kusanta zuwa cewa mutane.
Animal shi da dangantaka da wata gwamnatin wucin gadi tsakanin yini da dare, saboda haka, dole ne m hangen nesa a cikin wani haske. Kamar yadda aka ambata a riga, a manyan yawan sandunansu kayyade abũbuwan amfãni photopic hangen nesa, amma shi yana da wannan darajar, da kuma karancin haske. Akwai wani batu: a karnuka bayan Layer na sandunansu, kuma suka Cones akwai wani Layer kira da tapetum (Tapetum), wanda ya kunshi mai haske nuna pigment. Saboda gaskiya cewa kusan duk abin da ya faru haske a cikin ido tsinkayen Kwayoyin, dare hangen nesa karnuka 3-4 sau mafi alhẽri daga da mutum.
Hakika, abin da kuke a yanzu sani game da yadda za su ga kare, iya wuya shafi your zabi na Pet ga wani iyali. Asali bambance-bambance a sheki da kuma launi photoreception ba. Kwayoyin predisposition da wani irin, akwai kawai wani daban-daban irin ido cututtuka.
By zabar isasshen for your iyali Pet, ba shakka, shi ne su mayar da hankali a kan data kazalika a kan bayanai game da wasu dispositions to cututtuka. Amma da farko na duk ka yi wa gidan na kare selection bisa ga manufa ga abin da ta dauka, ta conformation siffofin da damar, ciki har da kudi.
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