National Geographic : 1971 Oct
EKTACHROME(TOP) BYW. E . GARRETTAND KODACHROMES BY EMORYKRISTOF© N.G.S. 500 In search of harmony with a hostile environment, researchers study the North Slope's uniquely adapted plants and ani mals. Ranked like cemetery crosses, plac ards at Prudhoe (above) mark experimental plots of grasses that may help heal the land's man-made scars. Native tundra grasses grow slowly, so researchers seek fast-growing strains from other Arctic regions to stitch wounds cut by heavy machinery. Living fur collar, a tranquilized wolf (left) rides to tests at the U. S. Navy's Arctic Re search Laboratory in Barrow. How the ani mal's bare footpads resist freezing on Arctic ice puzzles scientists. Studies of wildlife sur vival secrets, they hope, may aid man in his own struggle against the cold. Field testing a "hot line," Canadian sci entists run heated crude through 2,000 feet of pipe set above and below ground near Inuvik in the Northwest Territories (right). Even when wrapped in insulation, buried pipe can turn frozen subsoil into muck.