Kusa-kit iyali na Whales

Smooth (real) Whales - shi ne mai matukar m, m kuma Big-dabbobi masu shayarwa, furrowing teku na duniya tamu. Sunan su iyali saboda babu a makogwaro da ciki na daban-daban ratsi da GROOVES, yin jiki musamman m. A halin yanzu, a iyali Refayawa yana da wani membobinsu na biyu danginsu da hudu jinsunan. The most na Whale iyali na santsi Cetacean Refayawa - mai molo. Ka yi la'akari da wadannan marine dabbobi a more daki-daki.

Amfaninsa Whales

Kafin ka fara da labarin, shi zai zama ya dace a lissafa duk mambobi ne na iyalin. The fiye da haka domin su ba sosai. Dabbobi raba wadannan marine dabbobi iri biyu kawai. Farko - bowhead Whales - An wakilta guda view na wannan sunan. Na biyu - m dama Whales - An wakilta uku jinsunan: arewaci, kudanci da kuma Japan. Abin mamaki, irin Greenland bowhead Whales a cikin marigayi Miocene da kuma farkon Pleistocene, an gabatar da biyar daban-daban. Su burbushin da aka samu a Arewacin Amirka da Turai.

Description na iyali

Kamar yadda riga aka ambata a sama, 'yan iyali - da m da m giant tare da wata babbar kai. A tsawon wadannan dabbobi iya isa har zuwa 18, da kuma wani lokacin har zuwa 22 mita. Su nauyi haka jeri daga 30 zuwa 100 tons. Amma, akwai mutane da na 15 mita a tsawon. A jikin wadannan Whales lokacin farin ciki da m kasa. Bã su da wani a tsaye ratsi da furrows, ga abin da suka kasance kasaftawa zuwa dace iyali. A fins na wadannan dabbobi gajera ce, amma m, da kuma baki ne kunkuntar, amma high.

Inda suke rayuwa?

Wakilai daga cikin iyali na da santsi Refayawa rayuwa, yafi a teku ruwa, inhabiting Pacific, Atlantic da Arctic Ocean. Alal misali, a arewacin Whale kawaici Atlantic ruwa. Ya Japan congener za a iya samu a ko'ina a cikin Arewa Pacific. Kudu view na cetaceans aka yadu rarraba a sanyi da kuma temperate ruwan da Southern Hemisphere na Duniya. Kusa-kit iyali na Whales - Greenland iyakacin duniya - fi son ruwan sanyi Arewa Hemisphere. Its mazauninsu aka kai tsaye alaka da samuwa daga can iyo kankara.

salon Whales

Ba haka ba da dadewa, Dabbobi karshe fitar da siffa cewa wakilan da iyali fi son zama shi kadai. Da wuya suke samun kashe a kungiyoyin na 4-5 mutane, amma babu more. Groups na wadannan manyan kifaye da ake samu a yankunan da suka fi maida hankali abinci. Iyo Refayawa kusan a ruwa surface.

Masana kimiyya bayyana tsari na ciyar da Whales matsayin wani abu fun da kuma sabon abu: a lokacin da suka ci abinci da suka taso kan ruwa darajõji tare da m-bude bakunansu da kuma, kamar injin tsabtace, tsotsa a cikin dukan krill, plankton, da kuma sauran dabbobi. Samuwa farin ciki Layer na subcutaneous mai muhimmanci worsens da zafi canja wuri a cikin jikin wadannan halittu, don haka suka taba iyo a cikin wurare masu zafi da ruwa.

Baleen Whales, kamar duk sauran cetaceans - shi ne viviparous dabbobi masu shayarwa. A wasu kalmomin, ba kawai aikata su ba da haihuwa zuwa rayuwa matasa riga, amma ciyar da su da madara! Shi ya sa wani kuskure to yi imani da cewa Whales - kifi. Ba zato ba tsammani, Whale madara ne 10 sau more gina jiki saniya. Wannan shi ne dalilin da ya sa kananan kityata girma sosai da sauri.

iyali na King

Greenland iyakacin duniya Whale - mafi girma a dukkan dabbobi masu shayarwa wakilta iyali. Kamar yadda aka ambata a sama, wannan ne kawai wakilin eponymous iyali. A nasa ne da suborder na baleen Whales. A halin yanzu, an san cewa matsakaicin tsawon na jiki na wannan giant iya isa 22 mita. A wannan yanayin, mãtan yawanci ya fi girma fiye da maza. The nauyi na wadannan dabbobi masu shayarwa dabam daga 80 zuwa 150 tons. Bowhead Whales - kyau kwarai iri iri. Sun iya nutse har zuwa zurfin mita 200 da kuma zauna a can har zuwa 40 minutes. Average gudun motsi bowhead Whales - 20 km / h.

A manyan Whale daga gidan santsi - da rikodin ga longevity tsakanin vertabrate. Shi ne a kan talakawan shekaru 40, amma wannan ba iyaka. Masana kimiyya jayayya da cewa mutum lokutta quite rayu har zuwa 211 shekaru! Yana da shakka wani Littãfi!

Ta yaya kuma abin da ya ci bowhead Whale?

Dalili na rage cin abinci na wadannan ƙattin na plankton - da suka fi so abinci. Greenland iyakacin duniya Whale fi son ci kananan crustaceans dabbobi (misali, copepods) da kuma pteropods. Adult Whales ake cinyewa a kowace rana har zuwa 2 ton na plankton! A tsari na ciyar da waɗannan dabbobi ne ba daban-daban daga ikon dukan wakilan na suborder na baleen Whales. Wannan yana taimaka musu don ake kira whalebone - cunkoso a cikin muƙamuƙanka na musamman rataye faranti. Daya daga da mutum yana iya zama daga 320 zuwa 370 guda. A tsawon kowane farantin - har zuwa 4.5 mita.

Kamar duk ga irinsu, da manyan Whale daga gidan santsi motsa a cikin tsari na ciyar da tare da bude baki a cikin ruwa, yankan shi da iko da kuma m jiki. Shi ne kamar wata katuwar injin tsabtace, shi tsotsa a duk abin da ya zo cikin hanyar. Ga inda ayyukan da na halitta tace - whalebone. Crustaceans shirya a giant faranti na baleen, sa'an nan babu makawa kankare harshe, da aka haɗiye shi. A mafi kyau tsarin irin wannan faranti damar da dabbobi masu shayarwa domin tace krill, wanda saboda su size, ba a samuwa ga sauran Whales.

A kan gab da karewa

Cetaceans na iyali dabbobi da aka kyakkyawa da yawa shafe ta mutum dogon kafin whaling kyautata tsari. Kuma duk saboda Whales masu sauki kama: suke rayuwa a cikin sama ruwa yadudduka, kiyaye kusa da bakin tekun. Bugu da kari, su ne jinkirin da tsauraran matakan. Abin baƙin ciki, a halin yanzu, da dama daga cikin wadannan dabbobi masu shayarwa ne matalauci. Alal misali, kudancin dama kifi Whale aka wakilta 7,000 mutane, da kuma arewa - 300 mutane. Japan Whales kullum da babu fiye da 200 mutane.

Arewa da Japan Whales aka jera a cikin Red Littãfi kamar wajen farauta. The yawan kamar yadda su kudancin takwarorinsu, sa'a, sannu a hankali murmurewa. Irin wannan ya karu sha'awa cikin wadannan Refayawa saboda su sauƙi na sufuri. The cewa babban adadin mai ba whalers kashe dabba don nutse a cikin ruwa - dabba mai shayarwa ne rugujewa, a kan ruwa surface.