Iintlanzi "umtyholi ulwandle" - ukutya, iimeko zokuphila, yokuzala

Enye izidalwa sikhulu edume zobukumkani kwamanzi -. Intlanzi 'ulwandle-umtyholi " Ngobukhulu na enasilela ngayo kwamanye iminenga, kodwa omnye wamalungu enkulu kule eziziivethebreyithi superclass zasemanzini afunyanwa ezinzulwini zolwandle kunye neelwandle. Kunye nokubaluleka yeentsomi kunye neenkolelo, kutshanje kuphela yehliswa, siqulethe kangangeenkulungwane ezininzi.

Ukuvulwa i "yolwandle-umtyholi"

Okokuqala wachaza yaye igama le silwanyana uJohann Valbaum - German nzulu, ugqirha kunye semvelo. Walibiza Raja birostris; kwathi, ngemilinganiselo zembali, hayi kudala - ngo-1792. Kufuneka kuqatshelwe, imbali ezi nakwiintlanzi cartilaginous kakhulu ukubhidisa kwaye ezingacacanga, ukuba ubunokumthelekisa nezinye izinto eziphilayo: kangangeenkulungwane ezimbini, baye banikwa iintlobo 25 "magama" kunye elinesibini generic. inzululwazi Modern kunakana igama manta birostris. Kude kube kutshanje kwakucingwa ukuba iintlanzi 'ulwandle-umtyholi "- ummeli kuphela manta. Noko ke, ngo-2009, yaye yabelwa uhlobo olunye, manta alfredi, ukuba umahluko omkhulu, kwaye imbonakalo, kuphuhliso kunye morphology, kodwa efanayo ngobukhulu, ukutya kunye nendlela yokuphila.

Amabali neentsomi

Fish 'ulwandle-umtyholi "(ingasentla) efika igama lakhe ngenxa imilo bokuhlala amaphiko entloko - ithumela ukudla emlonyeni wakho. Ukusuka mgama ezikhangeleka ngathi iimpondo; kwaye banikwe ngomli- bomntu, akumangalisi ukuba isoyikisa abahambi yolwandle. BaseYurophu ixesha qubha emanzini yimvula, wayekholelwa ukuba ukuba umsindo nguMtyholi-intlanzi, iya kutshona umkhombe, abasukele kwakhe umntu ngobushushu ongacimiyo nokuzingisa. Emzantsi-mpuma Asia ukuhlangabezana manta kwakuthetha (kwaye kuthetha ngoko kude) Kungekudala uya kukuhlisela ishwangusha nenkathazo ngakumbi. Kuye kwafunyaniswa ukuba umzimba omkhulu caba iilokhwe lilishwa ukwenzela uqhubekeko imveliso ngenjongo yokufunyanwa (ngolunye uhlobo - atsho ukuba umntu into wamgxeka silo).

Fish 'ulwandle-umtyholi ": Inkcazo

Skat ezisemanzini pectoral enkulu diamond-ezimilise - lwemizekelo amakhulu imihlaba efikelela iimitha ezisixhenxe. Aye kuloo amaphiko entloko ngaphambili, phakathi apho kukho umlomo. indawo Amehlo emacaleni, kwaye iigilizi - ngokohlobo kwiindawo zokubeka - ezantsi intloko. Ngasemva a emnyama devil ulwandle (emnyama okanye ezimnyama-grey), isisu ukukhanya. Kwaye iindawo kwelifu esisinyanzelo. Kuyaphawuleka ukuba inani kunye nendawo ngokungqongqo ngamnye - yeminwe ezifana ebantwini. Ke ukuba ubunzima, loo ubunzima leesampulu ezinkulu maxa wambi efikelela iitoni ezimbini ezinesiqingatha of ...

Ubomi olwandle

Enoba akukho ndixela oko kwakuza kufuneka mabali mabi okanye kwemoto, iintlanzi 'zolwandle-umtyholi "idla njenge umnenga - ezincinane kunye kwezilwanyana. Ukulungiselela le njongo, umlomo wayo lixhotyiswe isixhobo eyodwa ottsezhivaniya ukutya eziquka amacwecwe dj. Ngenxa ubungakanani manta, akumangalisi ukuba kuyanyanzeleka ukuba ukutya phantse ngokuqhubekekayo.

iintshaba Natural ezi zidalwa iminenga umbulali kanye sharks enkulu. Kwi abadala bahlasele kuphela xa begula nabenzakeleyo, kodwa amathole zizingela ngenkuthalo.

Ngenxa indawo enkulu yomzimba intlanzi-umtyholi (photo ukwenzela ukuba ukwazi ukujonga enobungangamsha abemi column wamanzi) ngokuqhubekayo "yi" kwinani elikhulu lweentshulube .. Iintsholongwane, lenyama, ulele, njl Oku kuba yingxaki enkulu, ngenxa yokuba zenethiwekhi (kwaye ngamanye amaxesha adala) ezahlukahlukeneyo izifo. Noko ke, neentlanzi 'ulwandle-umtyholi "omzimba sisibetho of kusitsho rhoqo iintlanzi-abacoci abaluma naye yonke eninzi, kuquka" inkonzo lokucoca' yaye emlonyeni, leyo ebudeni 'iinkqubo "ukucima i ithambeka evulekileyo.

Ngokwahlukileyo kolwandle intlanzi, manta - abemi kweemaleko yamanzi eliphezulu. ke musa kuwa tshama ukujula okukhulu.

mantas yokuzala

Kuba zizale stingrays ezinkulu ukudada ukuba kunxweme Mozambique. Zikhwelwe ukuba abanayo ngoNovemba. Ngelo xesha, kwakukho inokubonakalisa amaninzi amalungu lweentlobo 'ulwandle-umtyholi. " Inkcazelo usathandana, ngokuxhomekeka zizazinzulu ezininzi, Abafoti, neentlambululo engahlawulwayo, sichaza le nkqubo indawo enhle kunene. Iinkunzi landela yonke umngcelele ukulungele ukukhawula obhinqileyo, kwaye ngesantya eziphakamileyo, kodwa ngokuqhelekileyo uphawu ingubo. Female "umtyholi ulwandle" luvelisa imbewu enye kuphela; ulubona amawele zinqabile kakhulu. Kumanqanaba okuqala emva hatching usana ngaphakathi kumama wakupha ijeli yasebukhosini. Emva kokuzalwa neentlanzi 'ulwandle-umtyholi "ubude, isiphathele imitha kunye ngekota kwaye inobunzima malunga neshumi eekhilogram. usana olusanda kuzalwa yonke ilandela unina. iziphumo engaphumi female xa inzala - kwimeko kophazamiseko seminyaka emibini anamithathu.

ingozi lokutshabalala

Njengoko sele kukhankanyiwe, iintshaba zendalo kakhulu neentlanzi 'ulwandle-yobumnyama anako. Ke indoda ezibulalayo kuye. Inyama kunye kwesibindi eziphila elwandle zithathwa uju zokupheka, kodwa Chinese sele ngokubanzi kusetyenziswa amayeza. Yeyona abalobi Chinese ngokusebenzayo ukutshabalalisa iintlanzi-uMtyholi, kweza ngoNovemba ukuya kunxweme Mozambique. Ngenxa njani kancinci phinda i stingrays isigebenga, nokuba indawo ekhethwe ngabo ukuya kuzibandakanya, ke kunokuthiwa ukuba kude amanzi kufutshane Mozambique abe koovimba bendalo, ugrogriso imbokodo manta shwaka.

Riddles "ulwandle-umtyholi"

Ngaphandle kwento yokuba iintlanzi 'ulwandle-umtyholi "sele efunde ngokubanzi, hayi zonke ezifihlakeleyo yawo kutyhilwa zizazinzulu. Kuqala kwinto zonke, akukho namnye unako ukuthi kutheni Brac kufuphi Mozambique kwaye apho wenze emva. Ukusebenza hypothesis: ezi ray abafudukayo zihlala kunye nje "ukuhamba" ungayi ndawo.

Akukho ngaphantsi mfihlelo umkhuba wawo nokutsiba kwamanzi kunye ngaphakathi umthombo wokumisa umva. Ezinye izazinzulu ziye ukubeka phambili kule nkalo iinguqulelo ezininzi:

1. yesi ezinjalo - yinxalenye kwisiko ukuthandana.
2. Ngoncedo lwe umzimba amanzi ebetha iintlanzi 'ulwandle-umtyholi "ofihla abemi ezincinane.
3. Ngenxa yoko, isilwanyana ubani ayeke yezinambuzane ikudika.

Yiyiphi hypothesis ilungile, kusenokuba, uya kwaziwa kwixesha elizayo, kakade, ukuba nobuntu kunye sidalwa akuyi kuguqula kungena kudidi extinct.