[box_out][box_in] Although most anthropologists believe humans first arrived in New Zealand in the late thirteenth century, others have dated the arrival to much earlier—around 200 BC. The earlier arrival date was based on 1996 research that carbon-dated bones of rats, which are thought to have been brought to New Zealand by humans. With no evidence of human settlements that early,critics suggested that the carbon dates were due to lab errors in preparing the bones.
Now, a team led by Janet Wilmshurst has applied an improved preparation technique to other rat bones collected from excavation sites where the oldest New Zealand rat remains were found. The new rat-bone dates are all more recent than AD 1280. The Wilmshurst team’s carbon dating of bones from the previous study indicated that these, too, were more recent than AD 1280. They also carbon-dated seeds from the oldest rat-bone sites. Some of the seeds were nearly four thousand years old, but none of those with distinctive
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Now, a team led by Janet Wilmshurst has applied an improved preparation technique to other rat bones collected from excavation sites where the oldest New Zealand rat remains were found. The new rat-bone dates are all more recent than AD 1280. The Wilmshurst team’s carbon dating of bones from the previous study indicated that these, too, were more recent than AD 1280. They also carbon-dated seeds from the oldest rat-bone sites. Some of the seeds were nearly four thousand years old, but none of those with distinctive
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Statistics : Posted by Bunuel • on 12 Mar 2024, 00:55 • Replies 0 • Views 49
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