UMary Allen
Bagcina ukuba nokhokho oyedwa emgqeni wokuziphendukela kwemvelo wezilwane ezinomgogodla zomhlaba, ezihlanganisa abantu, cishe eminyakeni eyizigidi ezingu-420 edlule. Ukhokho ovamile i-coelacanth enayo nezinhlanzi, nokho, waphila eminyakeni engaphezu kwezigidi ezingu-20 edlule
Ayini amadlozi ezinhlanzi?
Izikali eziwugqinsi, eziqinile, i-asymmetrical caudal fin, nama-vertebrae enziwe ngoqwanga esikhundleni sethambo: "inguqulo yokuqala" yezinhlanzi zanamuhla. Izikali zabo eziyisidala zazinama-sleb ayisikwele ethambo ahlelwe njengamatshe enziwe ngamatshe futhi embozwe uhlobo oluthile loqweqwe lwamazinyo.
Ingabe umuntu angaba namazinyo?
I-arch yokuqala
Izingxenye ezinkulu zobuso, njengomhlathi ongenhla (i-maxilla), umhlathi ongezansi (i-mandible), nolwanga, kanye nesando se-ossicles ezwakalayo kanye ne-anvil (kodwa hhayi i-stirrup), zivela ku-first-gill arch (mandibular arch). ).
Yini abafana ngayo abantu nezinhlanzi?
Abantu banezici ezifana nezinhlanzi! Ukufana kuyamangalisa, lokhu kungabonakala ekukhuleni kokuqala kombungu womuntu. Lapha amehlo ethu aseseceleni kwekhanda kanye nodebe lwethu lwangaphezulu, futhi umhlathi wethu, nolwanga lwakhiwe njengezakhiwo ezinjenge-gill endaweni yentamo.
Ingabe Ama-Pisces Anobuntu?
Kukhona futhi izinhlobo ezahlukene zamaPisces - ezinye zingama-daredevils, ezinye ezesabekayo-amakati. Ekuhloleni, abacwaningi bathole ukuthi izinhlanzi zinobuntu nokuthi kukhona nabaholi esikoleni. Ama-Pisces awaveli nje ngokuba nobuntu obuhlukile kwabangakaziwa.
Sasiyini isilwane sokuqala emhlabeni?
I-Ichthyostega iyisilwane sokuqala sasemhlabeni kuphela esizoqanjwa ngegama, okungenani iyisilwane sokuqala sasemhlabeni esithole izinsalela zaso.
Yayiyini inhlanzi yokuqala emhlabeni?
I-coelacanth, esaphila nanamuhla futhi ingeyezinhlanzi, kwakuyinhlanzi yokuqala ukuba nepheya lamaphiko e-pectoral aqiniswe ngethambo. I-amphibian amphibian Ichthyostega yavela kumanduleli wayo, i-coelacanth, futhi yashabalala cishe eminyakeni eyizigidi ezingama-350 edlule.
Ingabe i-Pisces Social?
Kodwa-ke, ucwaningo olukhulayo lubonisa ukuthi izinhlanzi, ngokuphambene nalokho, ziyizidalwa ezinengqondo nezenhlalo ezikwazi ukuzwa kanye nemisebenzi emangalisayo.
Ingabe inhlanzi inenhliziyo?
Inhliziyo ishayela uhlelo lokujikeleza kwegazi lwenhlanzi: umoya-mpilo ungena egazini usebenzisa ama-gill noma ezinye izitho ezimunca umoya-mpilo ngokusebenza kwenhliziyo. Phakathi kwezilwane ezinomgogodla, izinhlanzi zinenhliziyo elula. Isitho esibaluleke kakhulu se-metabolic isibindi.
Ingabe ushaka uyinhlanzi?
Ngokungafani nemikhomo, oshaka abazona izilwane ezincelisayo kodwa bangabeqembu lezinhlanzi ezinoqwanga.
Ingabe izinhlanzi zinolaka?
Isibonelo, izinhlanzi zisebenza ngokuhlukile noma zinolaka futhi zisabela ngendlela ehlukile endaweni entsha noma izimo eziyingozi kakhulu.
Ukuhlalisana kwezinhlanzi kuhluke kakhulu futhi kuyinkimbinkimbi kunalokho okucatshangwa ngakho. Izinhlanzi ngazinye ziyazana, ziyasebenzisana, zakha ubungane bempilo yonke, futhi ziyazi ukuthi zingakuphi esikoleni. Kunezizathu eziningi ezenza ososayensi bawashaye indiva amakhono ezinhlanzi isikhathi eside kangaka.
Uthini ngenhlanzi?
Abantu abazalwa ngaphansi kwesibonakaliso sePisces bathandana kakhulu. Bakhetha ukuba sekhaya nemindeni yabo. Njengophawu lwamanzi, amaPisces angumuntu ongokomzwelo, kepha akakhulumi nawo wonke umuntu ngemizwa yawo. Ukuze benze lokhu, badinga uzwela olufanayo nabalubonisa abanye.
Ingabe inhlanzi ingaqhuma?
Kodwa ngingaphendula kuphela umbuzo oyisisekelo esihlokweni ngo-YEBO ngokuhlangenwe nakho kwami siqu. Izinhlanzi zingaqhuma.
Ingabe inhlanzi inazo izindlebe?
Izinhlanzi zinezindlebe yonke indawo
Awukwazi ukuzibona, kodwa izinhlanzi zinezindlebe: amashubhu amancane agcwele uketshezi ngemva kwamehlo azo asebenza njengezindlebe zangaphakathi zezilwane ezinomgogodla. Amaza omsindo anomthelela abangela ukuba amatshe amancane antantayo enziwe ngomcako anyakaze.
Kungani izinhlanzi zibaluleke kangaka?
Ilungu ngalinye liyingxenye yochungechunge lokudla kwasolwandle futhi ngaleyo ndlela lidlala indima ebalulekile ohlelweni lwendalo. Ngaphezu kwalokho, lezi zingxenye zochungechunge lokudla ziqinisekisa ukusinda kwazo zonke izinto eziphilayo olwandle, njengoba nazo zithonya kakhulu ukuphila kwethu. Izinhlanzi ziyingxenye ebalulekile ye-ecosystem yasolwandle.
Ikhala kanjani inhlanzi?
Izinhlanzi zikhulula izinto ezibizwa ngokuthi ama-frighteners lapho ziphazanyiswa. Kungenzeka ukuthi okwenzeka kwezinye izinhlanzi kwaba nomthelela ezinhlanzini - ngendlela engokwemvelo. Uyini umehluko phakathi kosizi 'lwangempela'?
Ingabe inhlanzi inemizwa?
Kwaphela isikhathi eside kukholakala ukuthi izinhlanzi azisabi. Azinayo ingxenye yobuchopho lapho ezinye izilwane kanye nathi bantu sicubungula leyo mizwa, kusho ososayensi. Kodwa ucwaningo olusha luye lwabonisa ukuthi izinhlanzi zizwela ubuhlungu futhi zingakhathazeka futhi zicindezeleke.