"A bolas (plural: bolas or bolases; from Spanish bola, "ball", also known as boleadoras) is a type of throwing weapon made of weights on the ends ...
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of interconnected cords, used to capture animals by entangling their legs. Bolas were most famously used by the gauchos (South American cowboys), but have been found in excavations of Pre-Columbian settlements, especially in Patagonia, where indigenous peoples (particularly the Tehuelche) used them to catch 200-pound guanaco (llama-like mammals) and ñandú (birds). The Mapuche and the Inca army used them in battle. Researchers have also found bolas in North America at the Calico Early Man Site.[citation needed]" - (en.wikipedia.org 08.09.2019)