Umxholo
Inkqubo ye- izilwanyana ezanyisayo liqela elimalunga ne-120 leentlobo ze izilwanyana, ethe ekuhambeni kwexesha yaqhelana nobomi bolwandle, kuxhomekeke kuloo ndawo ibonakalayo ukuze bazondle kwaye baphile.
Olu phawu lokuqala lubalulekile, kuba kuzo zonke iimeko luye lwavela kwisilwanyana esincancisayo saba sisilwanyana esenzelwe amanzi, hayi enye indlela. Izilwanyana zasemanzini zithathwa njengezilwanyana ze ubukrelekrele obukhulu, kwaye kumaxesha amaninzi banqweneleka kakhulu ngeenjongo ezahlukeneyo: yiyo loo nto behlala besengozini.
Iimpawu ezibonakalayo ze izilwanyana ezanyisayo bonisa amandla abo okuphila emanzini, ngeedigri ezahlukeneyo ze uhlengahlengiso. Ngamanye amaxesha umsila uba sisiphelo esithe tyaba se caudal, kwezinye amathambo emathambo asebenza njenge dorsal fin. Kuqhelekile ukuba akukho zinwele zininzi ngaphandle kwaleyo yentloko, kwaye iimpumlo zivuleka kwindawo ephezulu yentloko ukukhupha amanzi.
Baphefumla njani?
Uninzi lwezi zilwanyana luneemfuno zeoksijini ezifanayo nezabantu, ezinendlela efanayo yokuphefumla. Abanawo amaphaphu ngokulinganayo kunalawo omntu, kodwa banomthamo omkhulu wegazi: ibhedi ene-vascular ikhulu ngokulinganayo, kwaye ngokucacileyo isebenza njengendawo yokugcina igazi eneoksijini. Ngaphakathi egazini, ezi zilwanyana zinomlinganiselo ophezulu weeseli ezibomvu zegazi, zinika izihlunu umbala omnyama kakhulu.
Ukuba izilwanyana ezanyisayo ziyakwazi ukuphila emanzini yinto eyenze ukuba abantu bachukumiseke okokoko babakho emhlabeni, yiyo loo nto bebehlala befuna ukubonisa olu didi lwezilwanyana, kwaye babandakanyiwe kumabali nakwiintsomi. ukuyinika iipropathi ezintle.
Ukusukela kwinkulungwane ye-15, amabali alolu hlobo anikezela kumabali okuzingela, kwaye imikhomo yaba ngumtsalane omkhulu kulo msebenzi.
Olu luhlu lulandelayo lubonisa imizekelo yezilwanyana ezanyisayo ezinokuphila kwi Amanzi.
Imizekelo yezilwanyana zasemanzini
- Umnenga: Esona silwanyana sikhulu emhlabeni. Ihlala emanzini, kodwa ukutya kwayo kuveliswa ngendlela efanayo nezilwanyana ezanyisayo. Amathole alinganisa i-7 yeemitha kunye nobunzima beetoni ezi-2 ekuzalweni.
- Ihlengethwa: Banomzimba wefusiform onentloko enkulu kakhulu. Umbala wayo uhlala ungwevu, kwaye iyakwazi ukusebenzisa izandi, ukuxhuma kunye nemidaniso ukunxibelelana nendawo ekungqongileyo. Kungenxa yoko le nto yaziwa ngokuba yenye yezona ntlobo zikrelekrele.
- inkomo yolwandle.
- Walrus: Isilwanyana esanyisayo esikhulu, apho, kuxhomekeke kwimixholo engezantsi, iimpawu ezininzi ziya kutshintsha. Iinkunzi ziyazikhupha iinwele kanye ngonyaka, ngelixa iimazi zingathatha ixesha elide.
- IBeverver: Kukho iintlobo ezintathu emhlabeni wonke. Baziwa kakuhle ngokuba ngabantu abakwaziyo ukwenza amadama ngokugawula imithi, nangenxa yokuba yinto eyoyikekayo ehlaselayo.
- Beluga.
- Umnenga obulalayo: Ngokweqela, ibonisa iimpawu ezichazwe kakuhle. Iintsapho zikhokelwa ngumfazi osebenza njengentloko kunye nomama, kwaye amaqela awadluli kubantu abalishumi kwaye anokuhlala ezinzile ngokuhamba kwexesha.
- Ukutywina: Banqongophele ngokupheleleyo kwindlebe yangaphandle, ngelixa amalungu abo angasemva ejonge ngasemva, ngenxa yoko abanabuchule kakhulu ekuhambeni komhlaba.
- UNarwhal.
- Otter: Amanzi yindawo oziva ukhululeke kuyo, nangona ikwakhusela kakuhle kubume bomhlaba.
- Ingonyama yolwandle: Isilwanyana sodwa seqela leepiniped esineendlebe. Inkangeleko yazo iyahluka kakhulu kunalo naluphi na olunye usapho ngokobudala kunye nesini: amadoda anemilenze emide kakhulu nengqindilili ngokunxulumene nomzimba wonke. Bachitha ixesha labo elwandle, kwaye batya iintlanzi.
- Umnenga wesidoda.
- Iplatypus: Ijongeka njengesilwanyana esincinci, kodwa inobunzima obukhulu. Ngokuqhelekileyo itya izinambuzane zasemanzini kunye nemibungu yazo, ii-crustaceans kunye nee-mollusks zasemanzini.
- Porpoise.
- Imvubu: Amafutha phantsi kolusu ayawakhusela engqeleni. Umlomo wayo ovulekileyo unokulinganisa ukuya kwimitha, kwaye ihlala emanzini emini: xa kurhatyela, iyaphuma kwaye ikhangele ukutya kwayo.
Landela ngo:
- Izilwanyana ezanyisayo
- Amphibians
- Izirhubuluzi
