UMary Allen
Ngemizimba yazo eyisicaba, imisebe ayinaphutha. Zintanta kahle emanzini. Zizimbela olwandle ukuze zilale noma ziqamekele inyamazane yazo.
Izici
Ibukeka kanjani imisebe?
Imisebe iyizinhlanzi zasendulo kakhulu futhi, njengoshaka, ingeyomndeni wezinhlanzi ze-cartilaginous. Abanawo amathambo aqinile, uqwanga nje. Lokhu kwenza imizimba yabo ibe lula kakhulu futhi ayidingi isinye sokubhukuda njengezinye izinhlanzi. Umzimba wabo oyisicaba, okuhlala kuwo amaphiko e-pectoral njenge-ahem, ujwayelekile. Umlomo, amakhala, kanye namapheya amahlanu ezinsika zegill kungaphansi komzimba.
Ziphinde zibe nalezo ezibizwa ngama-spray holes engxenyeni engenhla yemizimba yazo, lapho zimunca khona amanzi eziwaphefumulayo futhi ziwaqondise emathunjini azo. Ahlale nje ngemuva kwamehlo. Izimbobo ezengeziwe zokufutha zibalulekile ngoba imisebe ihlala eduze nolwandle futhi ivame ukubhoboza phansi. Babephefumula udaka nokungcola ngamathumba abo.
Ingaphansi lomzimba likhanya kakhulu. Uhlangothi olungenhla luguqulelwe endaweni yokuhlala yemisebe, lungaba nombala wesihlabathi, kodwa futhi lucishe lube mnyama. Ngaphezu kwalokho, uhlangothi olungenhla lufakwe iphethini ukuze imisebe ivumelane kahle nendawo engaphansi komhlaba ehlala kuyo. Isikhumba somsebe sizwakala simaholo ngenxa yamazenga amancane kuso.
Abizwa ngokuthi ama-placoid scales futhi akhiwe nge-dentin noqweqwe lwawo, njengamazinyo. Imisebe emincane kunazo zonke ilinganisa amasentimitha angu-30 nje ububanzi, emikhulu njengemisebe kadeveli noma imisebe ye-manta emikhulu ifinyelela kumamitha ayisikhombisa ubude futhi inesisindo esingamathani amabili. Imisebe inemigqa eminingana yamazinyo emlonyeni wayo. Uma izinyo liphuma ohlwini lwamazinyo angaphambili, elilandelayo lithatha izintambo.
Ihlala kuphi imisebe?
Imisebe ihlala kuzo zonke izilwandle zomhlaba. Zitholakala kakhulu ezindaweni ezipholile nezishisayo. Kodwa-ke, ezinye izinhlobo zifudukela emanzini anosawoti namanzi ahlanzekile. Ezinye izinhlobo zaseNingizimu Melika ezifana nama-stingray ziphila kuphela emifuleni emikhulu yaseNingizimu Melika. Imisebe ihlala ekujuleni kolwandle okuhlukahlukene - ukusuka emanzini angashoni kuye ku-3000 wamamitha ukushona.
Yiziphi izinhlobo zemisebe ezikhona?
Kunezinhlobo ezingaba ngu-500 zemisebe emhlabeni wonke. Zihlukaniswe ngamaqembu amancane ahlukene, isibonelo, imisebe yesiginci, imisebe yesaha, imisebe ye-torpedo, imisebe yangempela, noma imisebe yokhozi.
Behave
Iphila kanjani imisebe?
Ngenxa yokuthi imizimba yabo ayilula kangako, imisebe ingabantu ababhukudi abahle kakhulu. Umsebe wokhozi unwebe amaphiko e-pectoral futhi utshuza emanzini ngokunyakaza okuhle kangangokuthi ufana nokhozi oluntweza emoyeni - yingakho igama lalo.
Yonke imisebe iyafana ngesakhiwo sayo esiyisisekelo, kodwa kusenomehluko ocacile phakathi kohlobo ngalunye. Umsebe wokhozi, isibonelo, unekhala elifana noqhwaku. Imisebe kagesi ishajwe ngogesi futhi ingashaqisa inyamazane yayo ngokushaqeka kukagesi okungafika ku-220 volts. Abanye, njenge-stingray yaseMelika, bane-stinger enobuthi obuyingozi emsila wabo. Ugesi, ama-stingray, nama-stingrays angaba yingozi nakubantu.
Imisebe yesiginci ichezuka kakhulu esakhiweni esiyisisekelo semisebe: Ibukeka njengomsebe ngaphambili, kodwa ifana noshaka ngemuva. Futhi i-marbled ray ithwala uchungechunge lwezakhiwo ezinjengezinyo emhlane wayo ukuze izivikele ezilwaneni ezidla ezinye. Imisebe inomuzwa omuhle kakhulu wokuhogela nokuthinta. Futhi banesinye isitho sezinzwa: ama-ampoules e-Lorenzini. Zibonakala njengemigodi emincane ngaphambili ekhanda.
Ngaphakathi kwama-ampoules kunento ye-gelatinous esetshenziswa imisebe ukuzwa amandla kagesi aphuma ekunyakazeni kwemisipha yempango yawo. Ngama-ampoules e-Lorenzini, imisebe ingakwazi "ukuzwa" inyamazane yabo olwandle futhi ithole ngaphandle kosizo lwamehlo abo - angaphezulu kwemizimba yawo.
Abangane nezitha zomsebe
Imisebe ivikela kakhulu: abanye bazivikela ngokushaqeka kukagesi, abanye ngokuluma okunobuthi noma umugqa wamazinyo abukhali emhlane wabo. Kodwa ngezinye izikhathi imisebe nayo iyabaleka: Ngemva kwalokho bacindezela amanzi ngezimbotshana zabo bese besebenzisa lesi simiso sokuhlehla ukuze badubule emanzini ngesivinini sombani.
Imisebe izalana kanjani?
Imisebe izalela amaqanda amise okwe-capsule ambozwe ngesikhumba lapho amaphuphu ekhula khona. Igobolondo livikela amaphuphu kodwa livumela amanzi ukuba adlule ukuze umbungu ugcwale umoya-mpilo. Ukuze amaqanda angathwalwa wusinga, anezinsimbi ezimangelengele amaqanda anamathela kuzo ematsheni noma ezitshalweni.
Kwezinye izinhlobo, amaphuphu akhula ngaphakathi kwamaqanda ngaphakathi komzimba kamama. Amancane achanyuselwa lapho noma ngokushesha ngemva kokuphuma kwamaqanda. Isikhathi sokukhula kuze kube yilapho ukuchanyuselwa kuqhubeke - kuye ngokuthi hlobo luni - amasonto amane kuya kwayi-14. Imisebe emincane ayinakekelwa unina kodwa kufanele izimele ngosuku lokuqala.
Care
Idlani imisebe?
Imisebe idla kakhulu izilwane ezingenamgogodla njengezimbaza, izinkalankala, nama-echinoderms, kodwa futhi izinhlanzi. Ezinye, njenge-manta ray enkulu, zidla i-plankton, izidalwa ezincane ezizihlunga emanzini olwandle ngezinyosi zazo.