FILE - In this undated file photo provided by the U.S. Fish and Wildlife Service, caribou from the Porcupine Caribou Herd migrate onto the coastal plain of the Arctic National Wildlife Refuge in northeast Alaska. Alaska Native and environmental groups sued the Interior Department on Wednesday, July 31, 2019, claiming its agencies have withheld information regarding its preparation for a petroleum lease sale in the refuge. (U.S. Fish and Wildlife Service via AP, File)
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