| http://www.w3.org/ns/prov#value | - An additional 3,500 to 4,000 archaeological sites are likely still untouched.The island's intact treasure chest of artifacts owes to its unusual ecology: There are no burrowing rodents, such as gophers, or even any worms to disturb the human creations.Earthworms were never part of the New World in recent geological times, said Navy botanist Bryan Munson.
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