Pangozi: vokuChina rwizi Dolphin (baijiu)

Muna 1918, inonakidza chinhu yakanga dzakaonekwa muna rimwe Freshwater madhamu ari Chinese enyika Hunan. The Dongting Lake akaonawo hwemvura mhuka rwevharanda suborder pamusoro toothed hove huru. Vakatumidza mhuka "Chinese rwizi Dolphin."

Ndivanaani rwizi Dolphins

Vanhu anoshandiswa chokwadi chokuti Dolphins - vagari wakawanda gungwa uye yomugungwa mvura. Asi pane imwe mhuri duku vanoda River Dolphins. Nhasi pane 4 mhando cetacean mhuka. Vatatu vavo vanogara mvura yakachena, uye wechina kurarama munzizi uye madhamu uye mugungwa. Zvinosuruvarisa ichi panjodzi marudzi. Vanotambura nokuda napedyo nevanhu. Yakatotsakatika nokuda kusvibiswa nzizi uye kudzora kundovhima.

Chii akabatanidza zita

vanhu Local kudana rwizi mhuka "baijiu". Chinese rwizi Dolphin ane nevamwe chaizvo dorsal zenze, akafanana cheki bhokisi. Izvi ndizvo vakapa kwezuva nezuva zita kwemarudzi. Zita nesayenzi kwemarudzi - Lipotes vexillifer. Kunosanganisira pfungwa mbiri. Leipo rinoreva "kukanganwa" uye vexillifer - «vakatakura mureza". Sezvaunogona kuona, vatsvakurudzi akashandisa zvokunze Association kana achida zita nokuda dziwande duku mhuka marudzi.

Description kwazvakaita

Freshwater mumiririri toothed hove huru, vokuChina rwizi Dolphin - chaizvo mhuka huru. Maximum hwakanyorwa mammalian muviri pakureba aiva 2.5 M uye shoma urefu mukuru - .. 1.5 mamita Weight mukuru mhuka Ingasiyana kubva 100 kusvika 160 makirogiramu. Description of Dolphin haisi kunyanya zvizere. Zvinozivikanwa kuti vakadzi izvi rudzi makuru uye kupfuura kukura varume. Muviri Dolphin gobvu uye stocky. Mutsipa iwayo Mobile. The pectoral zvimbi vane paupamhi hwaro, asi kune nemucheto kana kudimburwa nedemo kure. Dorsal zenze bhokisi-avhareji saizi, ane zvakanaka curving mberi uye neshure kumicheto. It iri kwete pakati shure, uye pedyo muswe chikamu.

Zvayaiva pamusoro korona mhuka blowhole denderedzwa. Zvinonzi zvimwe zvava kuruboshwe kubva pakati. Chinese rwizi Dolphin zvakaipa anoona. Meso ake hadzina yakatanga zvakanaka uye pachinzvimbo havaratidzi iri. Dzakakwirira mumusoro, izvo zvinoderedza dzokuonera yorusvingo.

The mberi Chikamu cranium - vanonzi pachikuva, zviri rakamanikana uye elongated. It akatsunga kumusoro zvishoma, uye afanane muromo mumwe kondo. Yokumusoro shaya ane mazino vasingasviki kupfuura pasi. Max pamusoro - 68 meno, uye nechepasi - 72 mazino.

Hazvibviri kunyora rondedzero Dolphin, kwete chaiyo ruvara hwemhuka. Baijiu chiedza yebhuruu kana rinokwanisa kucheneruka-pfumbu tint. Padumbu mhuka chena. Kunyange zvazvo vamwe zvapupu vanoti ruvara iri vakareruka kupfuura ari tsananguro chepamutemo. Vanoti Chinese rwizi Dolphin anenge chena.

Kuparadzirwa kwemarudzi

Kakawanda iri mhando rwizi Dolphins yaisangana the yangtze River. Kana iwe ndamboona, zvinoita sokunge kuti the yangtze River pamepu, zvino fungidzira sei zviri kutsi uye chakarebesa tsinga. Kureba kwazvo 6300 km asi hazvina kuponesa Chinese rwizi Dolphin kubva kutsakatika kutyisidzira. Apo neapo mhuka idzi vakasangana Tsyantane (River) uye madhamu kuti Dongting uye Poyang. Mumwe munhu akaonekwa munharaunda Shanghai.

Kurarama uye chii mhando Feeds

Dzidza upenyu ichi mhando zvakaoma chaizvo. Nokuda duku nhamba, hapana anenge asina ruzivo. We chete kuziva kuti rwizi Dolphins zvinochengetwa vaviri vaviri uye vanosarudza estuaries uye kudzika yegungwa. Ungangove, ichi ndicho chikonzero varombo Kugadzirwa nhengo kwemarudzi. Mvura nguva dzose madhaka saka ziso chaizvoizvo maturo kuvimba echolocation.

Chinese rwizi Dolphin inzira zuva nezuva muupenyu. Usiku, iye vanotiza munzvimbo ine kunonoka aibuda, kuzorora.

Zvokudya kubva mhuka duku hove, eels, Catfish uye clams. Nokuti kuvhima mhuka inoshandisa refu muromo. Narwo anochera Dolphin pamusoro sludge kugadzirwa. Kupwanya anoshongwa zvakaoma kushandisa mazino zvikurukuru kujairana zvinangwa izvi.

Apo neapo rwizi Dolphins kuunganidza mumapoka. boka kwakadaro kunogona kuva 3 vanhu, uye anogona inosvika mhuka 15. Asi zvivako izvi hazvisi zvechigarire.

kubereka

About kubereka Chinese rwizi Dolphins ruzivo muduku. Masayendisiti vaifunga, kunobva mashoko kubva tsanga iripo kwavari mumaoko avo. Vakadzi havasi yakaorera chaizvo. Vakauisa rumwe neKubhi, uye hapana kakawanda kupfuura kamwe 2 makore ose. Ungangove, kuti pokuva nezamu ndiyo 11 months. Cubs vanoberekwa simba. kokutanga amai ane kuichengeta yerera pamwe zvimbi dzavo.

Chaiwo nguva pakuyaruka haina kuzivikanwa. Maererano zvekungofungira, zvinogona pakati matatu namasere.

Kuedza kuchengetedza marudzi

Chokwadi, masayendisiti ari kuedza kuponesa pangozi marudzi emhuka, asi kuna China aisagona nomuongorori rwizi Dolphin kubudirira. Pasinei nokuti rudzi kunodzivirirwa uye rwakaiswa pangozi, mhuka zvakasikwa hakusi kusiya. Recent uchapupu rokusangana ichi vehove Dolphin maonero avapo muna 2004. Muna 2007, pakundopambara akatumirwa kuunganidza imwe nhamba nevakomana-bonde vanhu (misoro inenge 25). Izvi zvinogona kubvumira maonero inoparadzirwa vakatapwa pamwe kudzorera yevagari. Asi rwendo vakadzoka chinhu. Modern midziyo haana kunyorwa baijiu. Izvi zvinotisvitsa anosuruvarisa mhedziso: yevagari rwizi Dolphins akafa uye kudzorera hazvishandi. Zvinosuruvarisa kuzviziva, asi Chinese rwizi Dolphin iri pamutemo sezvo yakatotsakatika kubva 2007.