Keith - inhlanzi noma isilwane? Amaqiniso ethakazelisayo imikhomo

Keith - inhlanzi noma esincelisayo? Lo mbuzo zikhathazeke ososayensi eside ngaphambi kokusungulwa besayensi yanamuhla. Ikakhulukazi, le nkinga ubezama anqume a ezifana umqondo ubuhlakani, njengoba u-Aristotle. Futhi ngaleyo ndlela wafika esiphethweni esifanayo ukuthi abantu ababephila yethu. Kodwa ake zonke ukuze.

Keith - lena abakhileyo ophakeme kunabo komkhathi zamanzi. Nge ubukhulu bawo umusa akutholakali ngezinye iyiphi isidalwa esiphilayo, ingasaphathwa ikhono labo elimangalisayo ukuba bacule izingoma. Kodwa yini enye esiyaziyo lezi zidalwa amazing?

Ngubani lo mkhomo?

Ngakho-ke yini lokho okushiwo umkhomo? Ngokusho isichazamazwi, kuyinto esincelisayo esikhulu uhlala kolwandle. Okungukuthi, ngokungafani kuya esikhathini esidlule, ukuthola isixazululo yenkinga obuntofontofo ezinjalo kulula kakhulu. Kodwa akazange senzeka njani ukuthi kwakuyofika inzalo i whale lasendulo wafuna bashintshisane ezweni olwandle?

Nokho, iqiniso lonke, ososayensi namanje abazi. Nokho, kuyaziwa ukuthi eminyakeni million 60 edlule okhokho zonke izilwane zasemanzini ezincelisayo, kuqala wahamba eyofuna ukudla yabo emuva emanzini. Mhlawumbe lokhu kuye kwaholela ukuba yesomiso esathatha isikhathi eside, lapho yabhubhisa ingxenye izimila emhlabeni, noma eziningi ukuqhudelana namanye izilwane. Kodwa iqiniso liwukuthi - okhokho imikhomo wayengasafuni hamba, ubalekele ezweni.

kanjani silwane ingashintshwa ukuze ukuphila ngaphansi kwamanzi?

Kufanele kuqondwe ukuthi baye bathi sebeshintshe ngokuphelele enjalo ingekho eminyakeni elilodwa noma amabili. Evolution - kuyinto uchungechunge izinguquko ezincane ezenza zeminyaka ophilayo umzimba njalo liziguquguqule. Lokhu ekugcineni ezala look entsha lonke, kuyinto ngokuyisisekelo ukuhluka okhokho bayo.

Nokho ngemva iminyaka eyizigidi ezingu-60, abacwaningi namanje ezitholakala whale skeleton isakhiwo Echoes walabo endulo, lapho ababehambe ezinyathela ngezidladla zalo ezine ezweni. Ngokwesibonelo, anakho ithambo hip, okuyinto etholakala engxenyeni ezingemuva umzimba. Futhi, amaphiko ayo phambi babe efanayo amathambo aqatha nge iningi izilwane eziyivulayo ayabulala.

Sebewuqedile eziningi izifundo, ososayensi baye ukufika khona esiphelweni ukwazi. It kuvela ukuthi izihlobo abakhulu izilwane zasemanzini ezincelisayo yizona izimvubu. Futhi uma ubuka eduze, izici ezithile ezifuze ukuziphatha kwabo kungaba esisibonayo namuhla. Ikakhulukazi isifiso sabo kakhulu amanzi.

Umndeni izilwane zasemanzini ezincelisayo

Kufanele kuqashelwe ukuthi umkhomo - akusiyo kuphela omele amalungu omkhaya eyibona khona. Dolphins futhi porpoises zifakwe isigaba ezincelisayo zasolwandle. Uyini umehluko kusuka nezinye izakhamuzi zaseMpumalanga ekujuleni kwamanzi?

• Okokuqala, bonke imikhomo kukhona esinegazi elifudumele, ngokungafani izinhlanzi. Yingakho kukhona kangaka abadinga fat omuhle umzimba ukuthi Uyakwati kubavikela nemakhata umbuso kwamanzi.
• Okwesibili, lo mkhaya akakwazi ukukhipha i-oksijini evela emanzini. Ngakho-ke, kufanele ngaso sonke isikhathi eze kwamanzi, ukuze ubuyise wamanzi akhe umoya emaphashini.
• Okwesithathu, zidla izingane zabo ubisi. Nakuba eminyakeni kwemvelo kule nqubo kancane zashintshwa izilwane zasemanzini ezincelisayo zisekhona ezincelisayo.

Umkhaya wonke uthuthuka zihlukaniswe amaqembu amathathu amakhulu:

• Baleen imikhomo (Mysticeti) - lo lamabutho enkulu kakhulu emkhayeni. Sici Its esiwuphawu kuyinto isihlungi umzimba "whalebone" ekhethekile, okuyinto isendaweni ongenhla besikhumba saleso silwane. umsebenzi Its main - gqwa plankton kusuka ukungcola engadingeki.
• Toothed imikhomo (Odontoceti) - futhi ezinkulu ezizingelayo, Ukusizakala squid kuphela nezinhlanzi ezincane. Lolu hlobo uyakwazi uzulazule emanzini usebenzisa amaza omsindo.
• imikhomo Lasendulo (Archaeoceti) - ngeshwa, hhayi omele eyodwa kulesi sigaba, angeke aphile kufikela kuzinsuku ezingu-yethu.

Imikhomo: ulwazi olujwayelekile

Phakathi nabo bonke abakhileyo kuyo yonke iplanethi ewuMhlaba whale - esincelisayo esikhulu kunazo. Isilinganiso omdala umuntu ongafinyelela 25 metres ubude. Ukuze uqhathanise, bucishe bulingane thatha amabhasi enkulu 4, uma bebeka ilandelana. Akumangazi ukuthi into enkulu kangaka unesisindo esingamathani angaba mayelana 90-110, futhi abanye ngisho nangokwengeziwe.

Lezi ziqhwaga bahlala cishe zonke izilwandle emhlabeni. Yini engashiwo, bangakwazi uthuthe kusuka endaweni eyodwa kuya kwenye kuye isizini. Lokhu ukuziphatha kungenxa yokuthi imikhomo nozwelo lokushisa lamanzi, futhi ngenxa yalokho ebusika bachitha eduze ezishisayo ukuphi.

Sekukonke, phakathi kwawo wonke amalungu alo mkhaya ungabahlukanisa zenyathi ezimbili ezihlukene: i-imikhomo okwesibhakabhaka futhi grey. Ngokwengxenye enkulu, lokhu kuqhekeka kungenxa umbala kwesikhumba yalezi zilwane, kodwa kunezinye, umehluko kungekho ezingabalulekile kangako.

Echoes of esidlule

Umkhomo Gray - omele omdala emndenini. Ososayensi baye bathola ukuthi izinsalela lezi zilwane ekuhlaziyeni anolaka kwaba iminyaka eyizigidi ezingu-30. Ngaphambili, lezi zidlakela wahlala cishe wonke amagumbi wonke, kodwa manje bangibonile kungatholakala kuphela engxenyeni esenyakatho ePacific Ocean.

Lezi zidalwa nisaphila ngamaqembu amancane abantu cishe 2-3 abantu ngamunye. Nakuba ngokuvamile ungase ukuhlangabezana, futhi umkhomo oyedwa ngeqholo zilima izikhala amanzi. Nokho iningi Giants kungcono ukuhlala eqenjini. Ngokwengxenye enkulu lokhu kungenxa yokuthi empunga umkhomo kakhulu athuthukile kakhulu ukugqashula izibopho zemikhaya.

Mhlawumbe lokhu inhlangano iye yabasiza usinde ezikhathini eziyingozi. Phela, phakathi nekhulu XX bahamba bayocekela phansi cishe ngokuphelele whalers, abazingela namanoni azo. Ngakho, ngokwale ndlela ososayensi, ngo-1946 inani lezi ezincelisayo lancipha laba abantu 250. Kuphela ngesimangaliso, futhi imizamo Izishoshovu zamalungelo isilwane ephethwe sigweme inhlekelele. Manje inani lezi zilwane liye landa ayizinkulungwane ezingu-30., Ukuthi wabanika ithemba elisha lekusasa elingcono.

I-blue whale - isidalwa ngobukhulu emhlabeni

Njengoba for the blue imikhomo, basuke kubhekwe ukuba izidalwa ngobukhulu kule planethi. Ngisho isilwane esikhulu onjalo afana ngazo indlovu, ayikwazi ancintisane nabo. Lezi osayizi sikhunjuzwa ukuthi lapho into efana imidondoshiya wahamba ebusweni bonke Earth. Manje, blue whale - kuphela omele kwezilwane lasendulo imidondoshiya.

Lesi silwane akuyona ikakhulukazi fan zabantu, ngakho akuvamile osondela ogwini. naphakathi awuthanda kakhulu olwandle oluvulekile, lapho uyazwelana ngempela khulula. Enaka ngempela kancane, kuphela ijubane 10-12 km / h, kodwa esimweni esiphuthumayo kwakungase ukwandisa ezintathu-emhlanjini.

Njengazo zonke amalungu zinhlobo zakhe, blue whale odla plankton. Futhi nakuba sekuyisikhathi eside lesi silwane indawo ezweni phezu kwamanzi, ukuze abahlala kuwo, ke namanje bengayi. Yingakho imikhomo kaningi ukuntanta phezu kwamanzi, ngaleyo ndlela ukukhulula amanzi esuka emithonjeni ukuvulwa okhethekile esisogwini somzimba wakhe.

ukukhiqizwa kabusha imikhomo

Imikhomo - izilwane kolwandle, ogama zinombolo ngokuvamile sehliselwe amazinga inhlekelele. Lokhu kubangelwa abantu abazingela inyama yabo namafutha. Kuyinto ba ibaphi kwezigwegwe eyinhloko Zabathinta, kodwa akubona bodwa.

Esinye isici ezithinta labantu yinoma uluphi uhlobo, yikhono layo nokuzala. Ngakho, le nkinga itholakala lokuthi lezi zidalwa kuholele inzalo wazalwa hhayi ngaphezu kwesikhathi esisodwa, kube yilowo nalowo noma iminyaka emibili. Futhi ngenkathi owesifazane ubeletha whale eyodwa kuphela kancane, okungenani - amabili. Ngesikhathi esifanayo, kuncike zenyathi imikhomo sokukhulelwa ingahlala phakathi 9 kwezingu-18.

Pleasant Kuyaphawuleka ukuthi umama uyohlala esikhathalela amawundlu akhe. Labo, esikhundleni salokho, elikhula ngokushesha futhi ikhula ngesisindo. Ngakho, ngokwesilinganiso, ngelanga shorthead ingakuthola mayelana 50 kg isisindo bukhoma. Ngakho ungamangali ukuthi izinyanga ezithile eziyisikhombisa, angababaza vymahal kuze kube amamitha 14 ubude futhi ezinesisindo esingaphezu 20-25 wamathani kuyilapho.

Futhi nakuba ukuthomba imikhomo iza eneminyaka engu-iminyaka 4-5, abantu agcwele omdala zingabantu 14-15 kuphela, unyaka zokuphila kwakhe.

Keith: Managing

Bambalwa abantu bazi ukuthi:

• Imikhomo - omunye kuphela umuntu ongakwazi ukucula. Nanyana lokhu begade kuyinto kwakucatshangwa ukuthi leli khono kuphela kwabesilisa, ucwaningo lwamuva baye bazibonakalisa okuphambene. Ngakho, kakhulu, imikhomo besifazane bavuma iingoma, ikakhulukazi namazinyane azo kancane.
• A usuthi Umkhomo oluhlaza ongama kuya kumathani amabili ukudla bukhoma. Ngokwesibonelo, catch efanayo ukuthatha isilinganiso izikebhe zokudoba.
• Uma sikhuluma isisindo umkhomo, kufanele sikhumbule ukuthi omunye ulimi yayo ukala 3 amathani. Ngokuqondene neminye imigwamanda, isibonelo, inhliziyo ongafinyelela 600-700 kg.
• Nakuba China wahlala ithambo hip, kuyize ngokuphelele. Ngaphezu kwalokho, it is hhayi ngisho exhunywe kwi-ingxenye eyinhloko skeleton.