Izidalwa zezilwane zangaphambili ziyizinduna zomhlaba wonke!

Ukuziphendukela kwemvelo kuyinto engathí sina. Esikhathini ngasinye isigaba sokubunjwa kweplanethi yethu esikhathini esithile, kunezinye izilwane noma ezinye izilwane eziyizona eziphakeme zenkathi yabo. Lezi zinkathi zazibhekwa njengezilwane zangaphambi kwesikhathi. Mayelana nabo futhi ukhulume.

Izilwane ezinamafutha ahlala emhlabeni wonke iminyaka engaphezu kuka-500 000 000! Cishe isigamu salesi sikhathi eplanethi yethu yayilawulwa yizilwane zasendulo - ama-dinosaurs! Cabanga nje ngalezi zinombolo! Asikho esinye isilwane sezilwane esingasinda emlandweni wokubunjwa kweMhlaba isikhathi eside nje uma kutholakala ezilwaneni zasendulo. Babengumfundisi wangempela!

Izilwane ezidla phambili - umqhele wokudalwa kwemvelo!

Ngesinye isikhathi, izilwane ezinwabuzelayo zasendulo zaziyinhloko yokuthuthukiswa kwazo zonke izilwane zasemhlabeni ezahlala emhlabeni wethu. I-Dinosaurs yaba yizikhulu zezwe iminyaka engaphezu kuka-100,000,000! Babeyizilo eziningi futhi ezihlukahlukene. Asikho esinye isidalwa esingabafanisa ngamandla nokuphelela! Ama-predators namuhla awanqamuki ukujabulisa abacwaningi kanye nezingqondo ze-philistine: inqubo yokuphila kwabo kanye nomdlalo wokuqothulwa kuyamthakazelisa kumuntu kusukela ngesikhathi esazifunda nge-Great Age of Reptiles! I-Dinosaurs ihlolisiswa ngokucophelela, akukho nezinye izinhlobo zezilwane eziqothileyo ezisetshenziselwa imibuthano yesayensi eyaziwa kakhulu kunezilonda zasendulo!

Izidalwa zasolwandle zangaphambili

Ngokuhamba kwesikhathi, izwe labe ligcwele kakhulu, futhi ezinye izilwane ezinwabuzelayo zaqala ukuthuthukisa amanzi. Ososayensi baye baqaphelisisa ukuthi izilwane ezinwabuzelayo kulo lonke umlando wokuthuthukiswa kwazo ngezikhathi ezithile zabuyela emanzini. Lokhu kwenzeka lapho kukhona ukudla nokulondeka okukhona okulindeleke khona lapho. Kwaba kwakungekho nzima, ngoba ukuphila emanzini nasolwandle akudingi izimpande eziguqukayo ngokuphelele emzimbeni nasemzimbeni wezokwelapha.

Izidalwa zasendulo zokuqala, ezazizi kahle amanzi, zaziyizimpondo - ama-mesosaurs enkathini yePermian. Emva kwabo, ama-diapsides okuqala - ama-tangosaurs, amathalenta, ama-claudiosaurs kanye nama-azazaurs - ashiye amanzi. Iqembu lwakamuva kakhulu lezilwane eziphilayo eziphila emanzini yizo zonke ichthyosaurs ezaziwayo. Lezi zilwane zasolwandle zazivele zishintshe ngokuphelele ukuze ziphile kunoma yikuphi amanzi eplanethi yethu. Ngamafomu abo, ama-ichthyosaurs afana nezinhlanzi ezivame kakhulu noma amahlengethwa kakhulu: ikhanda elino-triangular elinemihlathi emide liqhubekele phambili, umzimba uphahla emva kwesikhathi, i-caudal fin fin vertical kanye nemilenze iguqulwa ibe ngamaphiko amane.

Nkosi yamaLwandle namaLwandle Omkhulu kunabo bonke abahlala emhlabeni abahlala emanzini kwakuyi-lyoplvrodon ethile. Zonke ezinye izidalwa zasendulo zasendulo zasemanzini zazivele ziphela ngaphambi kwesikhathi ... Isikhathi sobukhona sawo sasiwela esikhathini seJurassic. Ubukhulu balesi sidalwa esikhulu sinamabikiswano esayense. Iminyango emine emikhulu, umsila omfushane ne-concave, nenhloko enkulu kakhulu futhi encane enamazinyo amakhulu (angaba ngu-30 cm ubude) yamenza waba umbusi ongenamthetho wezilwandle nolwandle lweplanethi lasendulo!