National Geographic : 1935 Oct
EXPLORING THE ICE AGE IN ANTARCTICA © Byrd Antarctic Expedition FOUR HUNDRED TONS OF SUPPLIES HAD TO BE HAULED OVER SUCH TRAILS A dog sled or man on skis first broke the trails to Little America, marking crevasses. Then the construction crew would follow along and throw a bridge, supported by telephone poles, across the widest crevasses. So great was the movement of the ice during warmer weather that the bridges often had to be shifted daily. © Byrd Antarctic Expedition WHY SHOULDN'T THEY BE PROUD? THEY ARE F. F. A .'S-FIRST AND ONLY PERMANENT FAMILIES OF ANTARCTICA Emperor penguins feed on fish and tiny crustacea inhabiting the icy waters. They cannot fly, but use their short, stubby wings as fins while swimming (see illustration, page 415).