Over 100 people were sacrificed in the Midnight Terror Cave to the Maya rain god. Blue strings were found from the teeth of humans sacrificed at the Midnight Terror Cave in Belize, according to a new study led by researchers from the United States.
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They were likely used for a range of activities at the site, including as jewellery, making reed baskets and plant fibre fishing nets, and hunting.
Prof O Connor said they may have also been used to make clothing out of animal skins to protect against the cold, challenging earlier assumptions such tools were only found in cooler southern climates.
Archaeologist Michelle Langley said the find showed bone tools had been used for at least 45,000 years by the Mimbi people. We previously assumed bone tools weren t widely used in northern Australia and only made it into the toolkit in the last 20,000 years, she said.