Dewclaws i nā ʻīlio: he aha ia?

Ua ʻike paha ʻoe i ka maiuu lima nui ma ka ʻaoʻao o ka wāwae o kāu ʻīlio? Kapa ʻia ʻo ia ka vestigial, a i ʻole dewclaw, manamana lima, a he paʻa ia mai ka wā kahiko o kāu pipi.

No ke aha e makemake ai nā ʻīlio i nā manamana lima vestigial?

ʻO ka mea kākau Psychology Today ʻo Dr. Stanley Koren e ʻimi ana i ka mōʻaukala o ka wāwae vestigial o nā ʻīlio i ka 40 miliona mau makahiki i ka "holoholona piʻi lāʻau, e like me ka pōpoki i kapa ʻia ʻo ka miacis, he kupuna lōʻihi ia o ka ʻīlio hou."

“ʻOiaʻiʻo inā he kanaka piʻi lāʻau ʻoe, ʻo ka loaʻa ʻana o nā manamana lima he mea maikaʻi. Akā naʻe, ua lilo ka miacis i ʻano honua, nā cynodicts. Mai ia manawa mai, ua hoʻomaka nā hanauna hope o nā holoholona e lilo i mau ʻīlio na mākou e hoʻololi i ka hana o nā mea hahai holoholona," wahi a Dr. Coren.

'O ia ho'i, 'a'ole ia he mea nui ka maiuu hou no na ilio hou. Eia nō naʻe, i ka hapa nui o nā ʻīlio ʻīlio, aia nō lākou ma nā wāwae mua. ʻO kekahi mau ʻano, e like me Pyrenean Mountain Dogs a me Briards, he manamana wāwae koʻikoʻi ma ko lākou mau wāwae hope a pāpālua paha - kapa ʻia kēia polydactyly.

ʻOiai ua manaʻo ʻia nā manamana lima vestigial no ka liʻiliʻi o ka hoʻohana ʻana, ʻaʻole pono lākou. Hiki i nā ʻīlio ke hoʻohana iā lākou no ka hopu ʻana. ʻO ka pinepine ma mua o kaʻole, hiki iāʻoe keʻike i kāu'īlio e'omi ana i ka iwi me kona "lima". Wahi a ka American Kennel Club (AKC), ʻo ka ʻīlio ʻīlio e hoʻohana ana i kāna "lima lima" ʻo ia ka Norwegian Lundehund, nāna e hoʻohana iā lākou e piʻi i nā mauna.

Hoʻopaʻapaʻa a puni nā manamana lima vestigial

ʻO ka AKC naʻe, ʻike ʻo ia he "wāwae ʻē aʻe" kēia mea hoʻohui a "ʻaneʻane hana ʻole" no ka hapa nui o nā ʻīlio.

No kēia kumu, a no ka hoʻopili ʻana o kekahi mau ʻīlio iā lākou - hiki ke hōʻeha i ka ʻīlio a me ka pilikia o ka maʻi - ua kapa ʻia ka AKC i ka wehe ʻana i nā manamana wāwae ʻo kekahi o nā "hana mālama holoholona palekana a maʻamau i hoʻolālā ʻia no ka pale ʻana. ka palekana a me ka pono o nā ʻīlio.

Kāhea ka AKC e wehe i kēia mau mea hoʻopili ma hope koke iho o ka hānau ʻana. ʻO ka ʻoiaʻiʻo, nui nā mea hānai ʻīlio e hana i kēlā hana i nā ʻīlio i nā lā mua o ko lākou ola. ʻO ia hoʻi, inā ʻaʻohe manamana wāwae vestigial kāu ʻīlio, ua wehe ʻia paha ia ma mua o kou lilo ʻana iā ʻoe.

Akā manaʻoʻiʻo nā hui ʻē aʻe he mea liʻiliʻi ka wehe ʻana i nā manamana wāwae vestigial a hoʻoulu i ka ʻeha nui o ka holoholona. Ma muli o kēia, ua hoʻopuka kekahi mau hui, e like me ka British Kennel Club ma UK, i nā palena i ka wehe ʻana i nā manamana lima vestigial.

"Ma waho aʻe o ka pilikia o kahi manamana lima vestigial e hopu i kekahi mea, ʻaʻohe kumu e wehe ai iā lākou," wahi a Albuquerque Vetco. "He hana ʻeha hoʻi ia no kāu ʻīlio."

Manaʻo nā kānaka lapaʻau ma ke keʻena ʻo New Mexico e ʻoki pōkole nā ​​mea nona ka maiʻu o ka appendage i mea e pale ai i ka snagging a i ʻole ka haehae ʻana. ʻO nā mea a pau āu e hoʻoholo ai e hana me ka manamana wāwae vestigial o ka ʻīlio, pono ʻoe e ʻoki i kona mau kui a pau. ʻAʻole like me ko lākou mau kūpuna a i ʻole nā ​​hoa pili i ka nahelehele, ʻaʻole ʻo nā maiuu ʻīlio he mea koʻikoʻi evolutionary nui, no ka mea ʻaʻole pono lākou e ʻimi i ka mea pio. Ma hope o nā mea a pau, makemake kāu ʻīlio nani iā ​​ʻoe e hānai iā ia i ka meaʻai puʻuwai ma mua o ka ʻimi ʻana iā ia iho.

ʻAʻole pau ka hoʻopaʻapaʻa, akā ʻaʻole maopopo i kāu ʻīlio. ʻO nā mea a pau āna e manaʻo ai (inā he māʻuʻu hou a ʻaʻole paha) ʻo ʻoe, ʻaʻohe kānalua, aloha iā ia.