Common hatimi: bayyanar, mazauninsu, halitta makiya

Common hatimi ne daya daga cikin 'yan mazaunan duniya tamu, wadda fi son dumi sanyi. A gaskiya, shi ne ya sa su za a iya samu ne kawai a cikin m snow-rufe yankuna. Saboda wannan wani dogon lokaci, masana kimiyya ba su iya karatu da wadannan dabbobi yadda ya kamata. Shi ne kawai a yanzu da cewa ci gaba da sanya babban ci gaba, muka bude su mai ban mamaki rayuwa a irin wannan yanayi.

Hange, ko talakawa, suka buga hatimi: mazauninsu

All wakilan wannan irin soyayya ga sanyi sauyin yanayi. Saboda haka, kusan duk na like da ake samu a yammacin da kuma gabacin Arctic Ocean. Wancan ne kewayon kara zuwa Bering Sea, Botfortovo da Chukchi Tekuna. Bugu da kari, sun za a iya samu a ga ~ ar ruwan na Greenland da Barents Sea.

Game da Pacific da kuma Atlantic teku, a nan za ka iya samun wakilan da irin wannan. A nan ne kawai da suke zaune a wadannan sassa na mallaka ba haka ba ne m - 'yan qasar gida na like da aka dauke su Arctic.

Species hange hatimi

Don kwanan wata, jama'ar na harbor like yana da game da 500 da dubu. Mutane. Dukan dabbobi suna kama da juna, amma a lokaci guda, masana kimiyya sun gano wata yawan musamman subspecies. By kuma manyan, irin wannan rarrabuwa da aka alaka da mazauninsu. Duk da haka, akwai wasu bambance-bambance tsakanin waje da daban-daban mazauna.

Saboda haka, kowa da hatimi ne zuwa kashi da wadannan subtypes:

• Gabas Atlantic - shi ne ya fi kowa, na zaune tare da coastlines na arewacin Turai da kuma kasashen yammacin Asiya.
• West Atlantic subspecies - bautarka kusan dukan gabashin ɓangare na Arewacin Amirka.
• Pacific mazauna wadannan dabbobi masu shayarwa zauna yammacin ɓangare na Arewacin Amirka.
• Ungava hatimi - na musamman da wakilin wannan nau'in fi son su rayu tare da ruwa tare maimakon marine expanses.
• Rufẽwa a tsibirin - rayuwa a kan wani kananan mãkirci na ƙasar, ya kuma watsar a cikin teku, kusa da bakin tekun na Asia.

bayyanar

Abin da muka sani game da waje siffofin, wanda yana da kowa hatimi? Photos of dabbobi sanya a dukan sassa na Arctic, sun yarda da masana kimiyya ya bincika dukan jinsuna matsayin dukan. A m harka: kusan duk subspecies na hatimi daga cikin talakawa look kamar purebred dangi. The kawai ware ne Pacific samfurori da suke da dan kadan m zuwa ga 'yan'uwanmu jiki size.

Amma baya ga waje. Launi da like iya bambanta a ko'ina su rai. Duk da haka, mafi yawan Jawo launi dabam tsakanin launin toka ko m-kasa-kasa. A daidai wannan lokaci a kusa da dabba ta jiki a cikin wani m hanya warwatse duhu aibobi. A musamman, shi ne saboda su irin wannan wani lokacin ake magana a kai a matsayin "wakewake".

Game da girman, a kan talakawan kowa hatimi tsiro zuwa 1.8 mita. A wannan yanayin, da nauyi dabam tsakanin 150-165 kilo. Ya kamata kuma a lura da cewa mace suna da yaushe yawa karami rabo fiye da maza.

Halaye da kuma mazauninsu

Common hatimi fi son shirya a kan m gaba tare da ga ~ ar ruwan. A lokaci guda ya kan yi kokari don kauce wa bude ƙasar, don haka kamar yadda ba su jawo hankalin hankalin baki. A m gaskiya ne cewa, sabanin su kusantar dangi, da na kowa hatimi ba ƙaura. Wannan irin dogon xaukan a wuri guda, kuma ya bar shi kawai a lokacin da cikakken zama dole.

Kamar yadda na rage cin abinci, da dabbobi a cikin wannan girmamawa ne real yara. Su farautar yafi a ruwa, saboda wannan kashi - su gida. Kamar yadda suke farauta da suka zabi kalla nimble kifi: capelin, herring, Saffron cod, iyakacin duniya cod da sauransu. Duk da haka, a lokacin da babu irin wannan riba, da like iya ji dadin sauki da kuma kwaro.

haifuwa na like

Game 5 shekara rai na maza a karo na farko ta nuna sha'awa a cikin m jima'i. Amma mace girma da sauri, suna da jima'i aiki fara a shekaru 3 da haihuwa. Gestation yana watanni 11. A wannan yanayin, da haske da aka haife daya kawai maraƙi, kawai a sosai rare lokuta, da mace za su iya yi kamar wata yara.

A kan talakawan, like maza rayuwa game 25-30 shekaru, wanda shi ne quite al'ada domin su jinsunan. "Ladies" kasance mafi m, kamar yadda su matsakaicin shekaru dabam tsakanin 35-40 shekaru. Masana kimiyya na iya ba da cikakken gane yanayin wannan sabon abu, amma bayar da shawarar cewa shi ne alaka da kaciyar mata aiki.

Halitta makiyan like

Mutane da yawa sun gaskata cewa babban makiyin da na kowa hatimi ne iyakacin duniya bear. Wannan magana ne ba gaba ɗaya na gaskiya. Duk da cewa toed predator gaske likes farautar plump dabbobi masu shayarwa, daga clutches na mutuwa kawai ta rage wani kankanin sulusi da murabba'i na wadannan dabbobi.

A mafi hatsari ne shirya kai da kisa Whales. Wadannan marine da yara a cikin ƙyaftawar ido iya kama da ci gaping ganima. Bugu da kari, kawai ya fi sauri like iya samun daga kisa Whale, sa'an nan, kawai a lokacin da ya gudu zuwa rairayin bakin teku.