Mary Allen
An kiyasta cewa kusan kashi goma cikin dari na mutane na hannun hagu ne, yayin da sauran kashi 90 cikin dari suka fi son hannun dama. Amma game da dabbobi fa? Masu bincike yanzu sun so sanin wane karnuka ne suka fi wayo?
Akwai misalai masu ban sha'awa da yawa tsakanin mutane: Michelangelo fentin da hannun hagu. Kamar Isaac Newton, Albert Einstein, Johann Wolfgang von Goethe, Maria Curie, Barack Obama - dukkansu na hannun hagu ne. Za a iya faɗaɗa lissafin cikin sauƙi. Hagu 'yan tsiraru ne, tare da ɗaya cikin mutane goma kawai suka fi son hannun hagu. Don haka hagu na hagu sun fi kyau, sun fi ƙwarewa - a takaice: superstars?
Babu wani abu daga cikin irin, masu bincike sun ce a yau. Sakamakon gwajin basira ya nuna cewa masu hannun hagu da na dama suna da IQ iri ɗaya. Me game da kerawa? Bayan haka, gefen dama yana sarrafa hannun hagu - wanda ke nufin ji, fasaha, da kerawa. Duk da haka, bincike ya nuna cewa masu hannun hagu ba su da kwarewa.
Shin Lefty Babban Tauraro ne?
Game da karnuka fa? A bayyane yake cewa wasu karnuka manyan taurari ne - kamar masu kare rai, karnukan bincike, ko karnukan ceto? A cikin neman amsoshi, masu binciken sun yi nazarin Dog Olympiad, nunin Klub din Kennel.
Don bincikensa, kamfanin gwajin kwayoyin halittar kare Embark ya gwada jimillar karnuka 105. Dukansu sun halarci gasar Westminster, wasan kwaikwayo na karnuka mafi tsufa na shekara-shekara.
Na farko, masu binciken sun ƙaddara yawan tawul a cikin karnuka. Mafi mahimmancin sashi shine "gwajin mataki": sun lura da abin da kare ke amfani da shi na farko lokacin da ya fara daga zaune ko tsaye. Kuma wane irin tafawa yake dauka idan yana tafiya akan sanda ta musamman. Don yin wannan, sun lura da jagorancin juyawa na kare.
Damar Dama ko Hagu: Ƙananan Mafi rinjaye Sun Mallake Dama
Sakamako: Karamin rinjaye yayi daidai. Maneuverability - 63 bisa dari. A cikin "Show of the Best" - 61 bisa dari. Shin karnukan da suka fi wayo da gaske suna da hannun dama? Sakamakon Embark ya yi daidai da sauran nazarin. Bisa ga wannan, kusan kashi 58 na duk karnuka suna da ƙafar dama. Da alama cewa nasarar wasan kwaikwayon ba ta yanke shawarar ƙaunataccen paw ba. Kuma wannan yana nufin: ƙafar dama ko hagu - babu wani tabbataccen nasara.
Madadin haka, sakamakon tayin ya nuna yiwuwar bambance-bambance a cikin fifikon paw tsakanin jinsi. Karnukan sun kasu kashi uku: karnukan kiwo, masu tada kayar baya, da masu kwatowa. Bayanai sun nuna cewa kashi 36 cikin 72 na Makiyayi Dogs da Terriers na hannun hagu ne - kashi XNUMX cikin XNUMX na masu dawowa.
Mace sun fi samun tawukan dama
Wasu bincike sun nuna cewa tambayar ko kare na hannun dama ne ko na hagu kuma na iya yin tasiri ta hanyar jinsi, jinsin mai shi, da shekarun kare. Don wannan, an kimanta karnuka 13,240 da abubuwan da suke so.
Sakamako: gabaɗaya an sami ƙarin tafofin dama - 60.7% a cikin mata da 56.1% a cikin maza. Amma: rabon karnuka tare da fifiko ga ƙafar dama ya fi girma a cikin bitch fiye da mai shi. Bugu da ƙari, tsofaffin karnuka sukan fifita ƙafar dama fiye da ƙananan karnuka.
Ƙarshen masu binciken: Canje-canjen matsayi da canje-canje masu alaƙa da shekaru na iya shafar fifikon paw a cikin karnuka…