This is what it looks like when caribou cross your path on the Dalton Highway (click on the first one and scroll to the right to see them full size):
And here are three moose next to the Welcome to Fairbanks sign on the Parks Highway, taken the day after the caribou but there was no snow in Fairbanks at that time (10 days ago). Jack says this is a bull and his harem. You can barely see the one on the other side of the bushes but Jack says he’s a young bull trying to build a harem. The moose on the right looks to me like a young moose, possibly a calf of the cow. All-about-moose.com says about this topic: “The taiga moose calf will stay within visible proximity whereas with tundra moose calves they will generally avoid the harems the bulls collect. Bulls will tolerate yearlings but for the most part calves avoid the harem group.” We didn’t even know there was a difference between taiga and tundra moose.