These young pups on Herbert Island, Greenland, will grow up to be powerful, thick-furred sled dogs conditioned to survive long periods of exertion in subzero temperatures.

• 在格陵兰的赫伯特岛上，这些小狗崽将成长为强健有力，皮厚毛长的雪撬犬，它们能够适应在长期零度以下的环境中生活。