EditorialA photo provided by the Government of Yukon, of Aisling Farrell, collections manager at the La Brea Tar Pits in Los Angeles, left, and Susan Hewitson, a paleontologist with government of Yukon, fossil collecting at the Last Chance Creek placer mine in the Yukon. (Government of Yukon via The New York Times)
EditorialA photo provided by the Government of Yukon, of Aisling Farrell, collections manager at the La Brea Tar Pits in Los Angeles, left, and Susan Hewitson, a paleontologist with government of Yukon, fossil collecting at the Last Chance Creek placer mine in the Yukon. (Government of Yukon via The New York Times)
EditorialA photo provided by the Government of Yukon, of Aisling Farrell, collections manager at the La Brea Tar Pits in Los Angeles, left, and Susan Hewitson, a paleontologist with government of Yukon, fossil collecting at the Last Chance Creek placer mine in the Yukon. (Government of Yukon via The New York Times)