Pakati pa anthu okhala ku Amazon ndi Central America, komanso pakati pa atsamunda, pali nthano yomwe njoka yamtchire imatha kuyimba. Izi zanenedwa nthawi zambiri, zomwe ndizodabwitsa, chifukwa ndizodziwika kuti njoka sizimatha kuyimba. Pomaliza, asayansi adaganiza zotulutsa nthano iyi.
Mmodzi wa mtundu wa "Lachesis," njoka ya bushmaster, yotchedwanso "surukuku", ndi njoka yayikulu kwambiri ku Western Hemisphere ndipo imatha kutalika mamita 3.5. Zambiri ndizokhudza njoka iyi, chifukwa anthu ake ndi ochepa kwambiri ndipo amakonda kukhala moyo wachinsinsi. Kuphatikiza apo, kutalika kwa moyo wa njoka izi kumatha kufikira zaka 20.
Ndipo kotero, pamaphunziro aposachedwa omwe adachitika ku Peruvia ndi ku Ecuadorian Amazon, asayansi adatsimikizira kuti palibe kuyimba njoka. M'malo mwake, kuyitanidwa kwa achule akulu amtengo akukhala mumikhole zamitengo yopanda pake kunadzakhala "nyimbo ya njoka".
Ngakhale kuti maulangizi ochokera kumayiko onsewa amalankhula ndi liwu limodzi za oyang'anira tchire akuyimba njoka, sizimadziwika za achule. Komabe, asayansi akuyembekeza kuti apeza njoka m'malo mwake mitundu iwiri ya achule amtundu wa Tepuihyla. Zotsatira za kafukufuku wawo zidasindikizidwa mu nyuzipepala ya ZooKeys. Ofufuza kuchokera ku Catholic University of Ecuador, Institute of Amazonia Study ku Peru, Ecuadorian Museum of Natural Science ndi American University of Colorado adagwira nawo ntchitoyi.
Chosangalatsa ndichakuti, imodzi mwa achulewo ndi mtundu watsopano womwe watchedwa Tepuihyla shushupe. Mawu oti "shushupe" amagwiritsidwa ntchito ndi anthu ena azikhalidwe ku Amazon potanthauza mbuye. Ndiyenera kunena kuti kulira kwa chule ndichachilendo kwambiri kwa amphibiya, chifukwa koposa zonse kumafanana ndi kuimba kwa mbalame. Tsoka ilo, mpaka lero sizikudziwika chifukwa chake nzika zakomweko zimayimba kuyimba uku ndi mphiri. Mwina mwambiwu udzathetsedwa ndi akatswiri anthropologists ndi akatswiri azikhalidwe.
