Tsis muaj leej twg paub tseeb thaum cov neeg ntawm Yawg, ib lub kauj Mikronesian me me, pib siv loj npaum li cas tsis zoo li cov nyiaj pob zeb, tiam sis lawv cov nyiaj pob zeb tau twv yuav raug nyob ib puag ncig rau ib tiam thiab tseem muaj hnub no. 


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Micronesian Islands tuaj siv Asmeskas cov nyiaj raws li lawv cov nom txiaj, tab sis nyob rau hauv cov neeg ua Yawg cov neeg siv kuj txawv txav ntawm cov nyiaj - cov khwb loj loj tshaj plaws, cov kev lag luam ntau dua ib lub tsheb. Muaj ntau pua ntawm cov discs tawg thoob plaws hauv lub kob, ib txhia nyob sab nraud ntawm cov chaw ntiav pw, lwm leej lwm tus khaws cia hauv hav zoov, tiam sis feem ntau ntawm lawv khaws cia nyob rau hauv pob zeb nyiaj ntug dej nyob hauv txhua lub zos. Muaj kwv yees li ntawm 13,000 pob zeb discs hauv kev ua ntawm Yuas, xws li ntawm 30 centimeters mus rau 3.50 meters nyob rau hauv lub cheeb, nrog cov loj tshaj plaws raug suav hais tias yog tseem ceeb tshaj plaws.

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