Alamar furcin Arewa itace ta yanke zube, mafi kusancin dangi na Arctic Jawo hatimi.
Wannan dabbar tana daga zuriyar siran siran hatsi, matan da suke ƙanƙanta a ciki fiye da maza.
Sakamakon furcin Arewa (Callorhinus ursinus).
Bayyanar gashin fur da girman su
Mace a matsakaita tana nauyin kilogram 60-70 kuma tana girma zuwa tsawon 1.4 Maza sunfi yawa: nauyi 200-220 kg, tsayin jiki 2.2. Matsakaicin nauyin dabbar, wanda masana suka lura dashi - kilogiram 320.
Saƙar fur tana da duhu mai launin shuɗi mai duhu. Mata sun bambanta kaɗan daga maza a launi. Koyaya, ana samun mace wasu lokuta wacce fatar ta zama launin toka mai launi. An haifi jarirai na sananniyar fur ta arewa tare da baƙar fata, wanda bayan molt na farko ya sami launin shuɗi mai launin shuɗi.
Sakamakon furcin Arewa ya zama na hatimin hada-hada.
Halin dabbobi da abinci mai gina jiki
Wakilan nau'ikan suna da kyau masu iyo, masu iya nutsuwa zuwa zurfin mita 200. Jawo mai santsi mai laushi da lokacin farin ciki lokacin farin ciki yana kare mai hasashen daga cutar rashin lafiya, saboda kuliyoyi suna kashe rabin rayukansu a cikin ruwan arewa.
Furan rubutun kanniyar Arewa na zaune ne a tekun Pacific, a cikin yankunanta na arewacin. Yankunan kudu waɗanda yankin iyakar wannan nau'in suna zaune daga gefen tsibirin na Jafananci zuwa gaɓar tekun kudu na jahar California, har kuma Tekun Bering da Okhotsk.
Sakamakon Furcin Arewa.
A halin yanzu, akwai waɗannan dabbobi miliyan 1.1, rabi waɗanda suka fi so su zauna a yankuna na gabashin Tekun Bering. Aƙalla like like fur 100,000 suna zaune a yankin kudu maso yammacin Tekun Okhotsk da kuma bakin tekun Sakhalin. Tsibirin Kuril ya ba wa wasu dabbobi dubu 70 na wannan gandun daji. Ragowar yawan jama'a suna zaune ne a arewa maso yammacin Arewacin Amurka da kuma yankin gabar ruwa na California.
Furan kuli na kuli na arewa suna da al'adar ƙaura don ƙaura daga yanayin wasannin roket. Bayan ƙarshen lokacin kiwo, wanda ya ƙare daga watanni 3 zuwa 5, dabbobi suna yin rayuwar lamuni a cikin sararin teku. Zasu iya haɗa kai wani lokacin cikin ƙananan ƙungiyoyi, amma galibi suna jagoranci cikin salon rayuwa. A lokacin hunturu, suna ciyarwa a cikin ruwa, a kan tudu ba tare da sun bayyana ba. Da farkon bazara, sai su koma rukuninsu na gargajiya.
Kamar kowane kullun, sean kuli na fur ɗin suna ƙaunar fitar da su.
Abincin don hatim ɗin fur ɗin shine kifaye da kifayen kifin. Waɗannan atorsarfin kishiya wani lokaci zaki zaki yayi kanshi, tunda mazaunin dabbobi ya zo daidai harma da kwanukan roket ɗin su akasari ke nan. Za'a iya lura da daidaiton murhun gashi da zakuna na teku a gabar tsibirin Komandorski da kuma tsibirin Kuril.
Kiwo
Maza, bayan mummunan rikici da abokan hamayya, suna haifar da haɓaka daga mata. Ciyar da yara na ppan ppan kwikwiyo waɗanda aka haife suna kimanin tsawon watanni 3-4. Ya zuwa watan Agusta, yaran sun girma kuma bayan mirgine dabbobi su tafi teku - lokacin ciyarwa ya fara. Kowace shekara, ana ciyar da lokacin ciyar da lokacin kiwo, na kimanin shekaru 20 a rayuwar wadannan dabbobi masu shayarwa. Sakamakon furcin Arewa ya kasance yana rayuwa tsawon shekaru 20-25.
Siffar fur ta Arewa ke rayuwa tsawon shekaru 25.
Abokan gaba na Arewa Fur Seal
Seoƙon hatimin yana da maƙiyi fiye da zaki mai zaki. Wannan wani mutum ne wanda tsawon ƙarni yana farautar wannan nau'in. Kyakkyawan dusar dabbar dabbar dabbar marine tana da matuƙar godiya. Amma a wannan lokacin, dakatar da zubar da hatimi da ba'a sarrafa ba.
A cikin ruwan teku mai gishiri, wakilan nau'ikan suna da abokan gaba kamar kifayen kifi da kifayen kifi. Kisa Whale na iya kai hare-hare a bakin ruwa, sharks ne ke buɗewa a cikin teku.
Rashin yanayin muhalli mara kyau shima yana taka rawa wajen rage yawan ɗimbin giwayen.
Idan an sami kuskure, a zabi wani ɗan rubutu sai a danna Ctrl + Shigar.
Bayanin da fasali
Bugun fur na ArewaCallorhinus ursinus) - manyan mafarauta a karkashin ruwa. A cikin asalin ƙasarsu, suna daɗaɗar al'ada da ƙoshin lafiya kuma suna shaƙa a cikin ɗakin gidan dabbobi a cikin irin wannan saurin cewa galibi suna yin kuskure ga kifi ko dabbobin ruwa (hoto 2). A kusan duk lokacin sanyi na shekara, seals suna yawo a sararin tekun Pacific nesa da bakin tekun kuma kada su hau ƙasa tsawon watanni bakwai. Kyakkyawar hangen nesa da tsari na musamman wanda ya basu damar ganin ganima karkashin ruwa a nesa mai nisa, har cikin duhu. Idanun kuliyoyi suna da girma sosai, launin ruwan kasa mai duhu, mai kariya daga wani fim mai tsauri wanda yake kare su daga ruwan teku mai kyau (hoto 1 da 1-a). Masu sautin zazzagewa masu saurin girgizawa suna karɓar ƙananan rawar jiki da ke fitowa daga kifin da yake wucewa, kyakkyawar sauraro yana taimakawa jin duk wani fashewar ruwa a cikin ruwa (hoto 3, 4). Bayan ya tabbatar da wurin abin da ya farauto, hatimin yayi iyo da sauri yana kama bakinsa mai rauni - yana cin nau'in kifaye, squid da katako.
Bambancin fasalin fur gashi (kamar duk alsan hatimin boge) - ƙananan amma a bayyane bayin kayan waje na carilinginous (duba hoto 4). Lokacin da maniyyi suka nitse, sai gefunansu na kusa su kekkke, yana hana ruwa shiga.
Fins gaba Jawo hatimi Suna kama da fikafikan tsuntsu - a cikin ruwa yana tashi, kamar yana girgiza su, yayin da masu juye juye suna taka rawar kwalkwali da mai daidaitawa. A ƙarshen kowane yatsun huɗa na baya akwai falmaran da cat yake buƙata don haɗawa da goge mayafin (hoto 13). Jikin kuliyoyi suna da sauƙin canzawa, kuma masu jujjuyawa sun fi wayar hannu ta hatimi na ainihi, kuma ana amfani da su azaman tallafi yayin hawa ƙasa. Misali, cat zai iya lanƙwasawa kuma ya tozarta tare da gashin bayansa (hoto 5, 6, 9, 10). A dabi'a, waɗannan dunkulenan suna iya tsallakewa daga cikin ruwa izuwa lamo ƙasa da kusan ƙaƙƙarfan tsaunuka. A cikin bauta, suna ba da kansu da kyau don horo da kuma nuna abubuwan al'ajabi na horo. Ba tare da tursasawa ta musamman ba, hatimin suna koyon tafiya da tsayawa a kan firinji na farko (hoto 12).