Kutheni lifuneka nje nemvubu ebizwa ngokuba 'ihashe emlanjeni "?

River ihashe ebizwa omkhulu esidla into awayeyizondelele ehlala emilanjeni okanye namanye amaqumrhu yamanzi. Ahlale ezi zidalwa engaqhelekanga umphanda e-Afrika wabiza iimvubu. Yeyona isilwanyana ilizwe lesithathu ngobukhulu emva indlovu kunye lomkhombe. Kancinane ngaphantsi, kodwa lomkhombe nzima emhlophe, isigebenga ongakanani ukuya ku 1800 kg.

Kutheni lifuneka nje nemvubu ebizwa ngokuba 'ihashe emlanjeni "?

Imvubu has intamo emfutshane eshinyeneyo neendlebe ezincinane. Ngaphandle kokuba izandi esi silwanyana emangalisayo eliguqulelwe ngokuthi "ihashe umlambo", izifundo genetic abaninzi baye babonisa ukuba nemvubu kufutshane nama dolphins kunokuba nayiphi artiodactyl. ukudla kwabo imifino aquka leziqhamo ewile, amagqabi, ingca, ummoba, umbona njalo njalo.

Kutheni lifuneka nje nemvubu ebizwa ngokuba 'ihashe emlanjeni "? Enyanisweni, igama lakhe amagama ukuya ababini Greek "umlambo," yaye "ihashe". Bona afaneleka kakuhle kokuhlala elide emanzini. Iimvubu ukhetha imilambo ngamanzi anzongonzongo kunye neebhedi nengcongolo ekufuphi, ezinye iintlobo bahlala emanzini ityuwa kufutshane emilonyeni yemilambo. Phezulu kwe entloko zibekwe iindlebe zawo ukuba zivale ngokuzenzekelayo, wena isilwanyana kuphela uwele emanzini.

iingxilimbela herbivorous

Ezi zilwanyana ukhetha ukuba emanzini imini yonke, eza elunxwemeni kuphela ebusuku ukuze akwazi ukuziphilisa. Maxa wambi xa ubani efuna ukutya kubakhokelela umgama (7-8 km) emhlabeni, ngoko ke ngesisa iphawulwe indlela yabo ukuze kamva lula ukufumana indlela yakho ekhaya kwangonyezi. Kuba ngobusuku omnye oku ezanyisayo enkulu ukubamba ukuya ku-100 eekhilogram utyani.

Abantu abadala ingadla isixa esikhulu ingca, ebamba yena ngomlomo wakhe ngokubanzi, hayi amazinyo, njengezininzi nezinye ezitya utyani. Ihashe umlambo ebizwa ngokuba yi phantse egudileyo, akanayo iinwele kunye nesikhumba-ethe kakhulu, pores apho nomfi ulwelo olunamafutha ebomvu elisebenza sunscreen, ukugcina ulusu hydrated akhuselwe, xa isilwanyana phezu komhlaba. Ngenxa yale msebenzi umdla kwenziwe ingcamango eziphosakeleyo zintokazi ilima igazi.

Iimvubu Ndinamabamba ezinkulu (siphume) kunye canines, nto leyo akayeki ezikhulayo kulo ubomi babo. Ezi Amabamba zithathwa exabiseke ngaphezu indlovu, ngenxa yokuba izikhohlakali zingamoyiki tyheli kunye nobudala. "Ihashe River" liye umlomo baninzi phakathi naziphi ezanyisayo ezikhoyo okwangoku ezisentlabathini, xa isigebenga herbivorous avule umlomo wakhe useyingxaki, umgama phakathi imihlathi kuba ukuya ku-60 cm!

isilwanyana bayathanda

Nangona ubukhulu bayo enkulu kunye nomthamo, imvubu akakhawulezi ngokwaneleyo ezanyisayo, nto leyo ngokulula uzishiye abantu. Iimvubu inokuba neenkomo kakhulu grumpy, yaye amadoda amabini inokuba ixesha elide ukulwa nabanye, maxa wambi ebangela yokulimala.

Umhlambi lubandakanya izilwanyana ezilishumi elinesihlanu eziquka eyindoda evelele, amadoda eziliqela ayamileyo izini, abaselula kunye ikhula. iimazi Pregnancy kuba malunga 230 iintsuku. Ukuzala ngokuqhelekileyo kwenzeka emanzini, kwakunye ukuzala kanye, kwiinyanga kwemvula enzima, kodwa kungenziwa ngamanye amaxesha onyaka. iimvubu Young kuqhotyoshelwe kakhulu koonina babo yaye badla ngokuchitha ixesha basking emqolo ebanzi.

yokuhlala

Le yemvelo yezi ezincancisayo ezinkulu kuphela Afrika, ikakhulu kumzantsi weSahara Desert. Kumaxesha amandulo, iimvubu nayo wadibana emantla, kwi umNayile Delta, kunye nemifanekiso yabo eqhelekileyo kwimizobo yamandulo zaseYiputa. Okwangoku, indawo iimvubu ahlala amachibi, imilambo kunye imigxobhozo eQhelekileyo yaseMpuma kunye Central Afrika.

Bona iimvubu kwamanzi

Into enikisa umdla kukuba ubukho iimvubu ezithile iindondo zebhayoloji - inwebu ngaphaya esigquma amehlo abo sokhuseleko, yaye kwangaxeshanye ebavumela ukuba babone kwamanzi. Ngexesha emanzini, iimpumlo zabo ivaliwe, ukuba babambe umoya imizuzu emihlanu okanye ngaphezulu. Iimvubu Unga kulala phantsi kwamanzi, usebenzisa reflex olwenza ukuba uhlunguzele intloko yakhe ngendlela yokuba bakwazi ukuthatha uphefumle awe phantsi, kwaye awuthethi nto avuke.

Noko ke, nangona zonke ezi sokutshintshwa kwamaphepha emibuzo ukulungiselela ubomi emanzini, isilwanyana ( "ihashe umlambo") akukwazi ukuqubha. imizimba yabo ashinyeneyo kakhulu ukuqubha, iimvubu lihamba ngendlela isangqa, ukususela ezantsi emlanjeni okanye nje ehamba ecaleni lomlambo wokuphalisa ukuphumla, olova ukubamba emgangathweni kancinci iinzwane okwedada.

Iimvubu baphila kwi-avareji engama-40-50, ityala xa omnye ilungu lentsapho babo ubomi iminyaka 61, nangona zivalelwe. Akumangalisi, le esidla omkhulu isebenzisa zalo ezinkulu amazinyo ezoyikekayo kuphela zokhuselo alwe ngohlobo lwazo.