Kum eng emaw zat an zawn hnuah Mexico-a archaelogist leh diver-te chuan tui hnuaia puk lian ber an hmuchhuak.
Scienstist leh diver-te telna, Great Maya Aquifer Project (GAM) team chuan Mexico-a Yucatan peninsula-ah tui hnuaia puk pahnih an hmuhchhuah thu an sawi a, heng puk pahnih Sac Actun leh Dos Ojos te hmuhchhuah tum hian kum rei tak hun an lo hmang tawh a ni. Puk pahnih inzawm hi Sac Actun system tia vuah a ni dawn a, a puk sei zawng hi mel 216 zet a ni. Puk an hmuhchhuahna, Yucatan Peninsula-ah hian hmanlai Mayan ho ro hlu eng emaw zat a la awm nia sawi a ni bawk.
credit, vanglaini