YSK The US National Park Service uses sled dogs in Alaska and has a breeding program. That breeding program includes a puppy cam. This year's litter is named after search dogs that died in 9/11 rescue efforts. Link to cam in comments.
from /r/YouShouldKnow
YSK 美国国家公园管理局在阿拉斯加使用雪橇犬并有一个繁殖计划。该繁殖计划包括一个幼犬营。今年的一窝小狗是以在9/11救援工作中死亡的搜索犬命名的。链接到评论中的凸轮。