Olu hlobo kungummangaliso kwaye zahlukene - yesilwanyana saselwandle

Yintoni esiyaziyo ngabo - malunga izilwanyana vtorichnopolostnyh ezingenamqolo, apho ezidityanisiweyo uhlobo kweembaza? Ukuba babe ethambileyo, umzimba sidlo, abanye baye oonokrwece calcareous (ezifana iinkumba), yaye ezinye ke ayisekho (as in imigca). Abanye babo ngokonwaba, ingca ukutya, abanye - nkqu ezizingelayo ezinobungozi kunye gazi. Umntu olucothayo kakhulu (umz, nkumba akhasa ngaphezu kweyure iisentimitha nje 12-20), lo gama i-squid usebenzisa i "jet injini", unako ukufikelela ngesantya km 70 / h. Kukho iindidi ukuba ezifuyelwa ngokukhethekileyo ukuba kudliwe (iimbaza, iimbatyisi) okanye neeperile, Sepia, purpura. Kwaye kukho saselwandle esineqokobhe enetyhefu kakhulu ezinokubangela ukufa nje ezilishumi kubo abantu.

Phakathi kulo mkhaya zinaso kakhulu kubakho enzela, kwaye nkqu nezithunzela. njani inzululwazi ngokucalula nokwahlula njani olu hlobo? Mbambela bohlulwa babe ngamaqela amathathu: bivalves, neegastropods kunye izilwanyana. Kodwa ngaphambi kokuba ukuthetha ngomahluko phakathi noqebeyi, iimbatyisi kunye squid, makhe ndikhethe into ohlanganisa ezi ezahlukeneyo ngembonakalo, indlela yokuphila kunye nomgangatho ophantsi kwezilwanyana. Bonke abanalo skeleton yangaphakathi. Amaqokobhe zezinye izilwanyana 'ikhaya' wabo, shushu ngokugqithisileyo ukhuselo kunye amarhamncwa. umzimba yabo iquka ezinamathele, imilenze kunye nentloko. Kwiintlobo ezininzi, kukho "ingubo" - isikhumba likriwa esigquma intliziyo, isibindi, zezintso. Igazi ukuba abe tyheli, kodwa ezinye izilwanyana - bubomvu.

uhlobo esineqokobhe eyayiqhelekile kakhulu kwixesha സോഫ്റ്റ്വെയര് isoftwe, xa uninzi kumphezulu soMhlaba yayizele ngamanzi. Kukho iintlobo ezingaphezu kwe-130.000 kwezidalwa eziphili zamandulo ezaba lilitye - phantse ezininzi neentlobo kukho ezikhoyo ngoku. Ke phakathi kwabo abo ingqalelo ukuba ziphele, kodwa ephila alimale ezinzulwini yamanzi. Le nto yenzeka nge "yefosili" neopilina ukuba wabanjwa ngowe-1952 kwi-Pacific Ocean. Ngoko ke asikwazi ngokuqiniseka ukuba uhlobo wanyamalala - ulwazi malunga ukuphelelwa yayo zibaxwe. Kukholelwa ukuba ngexesha squid Jura baba omkhulu, yaye oku kungqinwe ezafunyanwa ngabembi bezinto zakudala. Le inkulu, efumaneka kwi-southern US, yomzekelo cephalopod -. Squid eemitha-Ezintathu ezihlala elwandle kwiminyaka million 325 eyadlulayo. Noko ke, ngo-2003 kude nonxweme ka-Antarctica ubanjwe squid ngeemitha ezimbini ezinesiqingatha ubude.

Class neegastropods ukhetheke ukuba abameli balo Sendisicwaba ilizwe, kuba yeyona luninzi. Ngokungafaniyo bivalves kunye izilwanyana, akukho Anaki. Ezinye iintlobo tropical unako ukufikelela ukuya kwi-60 cm, kodwa uninzi - zizilwanyana ezincinane ezi 8-12 cm ubude. Ibizwa njalo ngenxa yokuba i "imilenze", nto leyo enyanisweni - hayi lomzimba kunye buti ngokwayo. Ezinye neegastropods abe isinki, yaye abanye - "ze". Baya kuba kucothoza gqitha, ukunciphisa ezinamathele kwezihlunu kunye nemilenze; Badla ikakhulu wokutya kwezityalo. Xa iinkumba ezweni emazantsi intloko emlonyeni, kwaye phezulu - Mpondwana sensitive, iincam neziwela "Amehlo". Izibilini phantsi ingubo.

Yintoni na iqela umdla abantu ezifana uhlobo kweembaza? Ezinye zazo (bivalves), uhlala kuphela amanzi. Esi silwanyana inkulu lesi sigaba tridacna: ezinye abanobunzima kg 300. Eyona uphawu olu hlobo ke izihlunu sinamandla kakhulu, iivelufa eqwalasele iqokobhe. Le gem inkulu itsalwa iqokobhe, zalishumi 6 kg. Kuya kuba nomdla into yokuba i-Black Sea Rapan wabetha Sea Black kuphela iminyaka-30 zenkulungwane yamashumi amabini, kunye ukufika enqanaweni wePasifiki. lundwendwe olidla wokulwa kwiminyaka engaphantsi kwama-100 ukunciphisa abemi iimbaza zasekuhlaleni kunye iimbatyisi, uwafake ezizibeni kusecicini yokutshabalala.

Bakholelwa ukuba akukho namnye neegastropods okanye bivalves akukho ubukrelekrele. Noko ke, le nkumba esinjalo, efana octopus, ebangela intlonipho ngokuzenzekelayo. Ummeli we izilwanyana ngokugqibeleleyo efanele uqeqesho, ukwazi abantu ukondla, bahlule ufakelele imibala abaninzi, adlulisele kuye ulwazi ukusuka kwenye umntu ukuya komnye yaye ingqondo, elikhusela "protocherep" - itoliki ekhethekileyo cartilaginous. Kuko konke oku ngwane enkulu unganciphisa kwi umsantsa kunye okusuka kwengqekembe! Ezi molluscs bakwazi ukwakha izindlu: ukusuka iinkonkxa okanye amaqokobhe abafileyo eqokelelweyo yokwakha ngisho ne evula umnyango!