Piranhas yog cov ntses dej tshiab nrog cov hniav ntse, thiab taug kev hauv cov shoals loj rau kev tiv thaiv los ntawm cov tsiaj nyeg. Txawm tias kev tawm tsam rau tib neeg tsawg kawg nkaus, lawv tuaj yeem ua rau tuag taus.
Puas piranha tom koj ntiv tes tawm?
Tab sis cov kws tshaj lij tsis tshua hnov txog ib tus ntses nipping ntawm tus ntiv tes, hais tias George Parsons, tus thawj coj ntawm Shedd's fishes department. Parsons tau hais tias piranhas, uas tuaj yeem muag tau raug cai hauv Illinois, yog cov tsiaj qus uas muaj cov hniav ntse thiab lub puab tsaig muaj zog uas tuaj yeem ua kev puas tsuaj loj.
Puas muaj piranha puas tau tawm tsam tib neeg?
Muaj ntau zaj dab neeg piav txog lub tsev kawm ntawv phem ntawm piranha tawm tsam tib neeg, tab sis muaj ob peb cov ntaub ntawv tshawb fawb txhawb nqa tus cwj pwm zoo li no. Cov ntaub ntawv tsawg heev ntawm tib neeg tau tawm tsam thiab noj los ntawm cov tsev kawm piranha suav nrog 3 qhov tshwm sim tom qab tuag los ntawm lwm yam ua rau (xws li, lub plawv tsis ua haujlwm thiab poob dej).
piranha noj tau tib neeg sai npaum li cas?
Nws yuav tsum yog ib lub tsev kawm ntses loj heev - lossis ib tug nyuj me me. Raws li Ray Owczarzak, tus pab saib xyuas cov ntses ntawm National Aquarium hauv B altimore, nws yuav siv sijhawm 300 txog 500 piranhas tsib feeb txhawm rau tshem tawm nqaij tawm ntawm 180 phaus tib neeg.
Puas muaj tib neeg tua piranhas?
Piranhas yog haiv neeg hauv paus txawm rau Amazon phiab, thiab xwm txheej tshwm sim txhua xyoo. Xyoo 2011, muaj kev tawm tsam tawm 100 tus neeg raug mob; xyoo 2012, ib tug ntxhais hluas tuag tom qabNws lub nkoj tau poob rau hauv Amazon thiab nws tau noj los ntawm piranhas. Thaum Lub Kaum Ob Hlis 26, 2013, kev tawm tsam piranha loj heev ua rau 70 tus neeg raug mob hauv Argentina.
