The late Ben Hopson glassing for caribou, mere hours before this Argo sank in the middle of an Arctic river. Photo by Scott Haugen. But, on this 23rd day of August 1994, our plans were not turning out ...

Permafrost, the thick layer of perennially frozen ground that covers much of the Arctic, slows down the migration of Arctic rivers, according to a new Caltech study. River migration is a common ...

The population of river-dwelling Arctic grayling has rebounded from earlier this century but challenges remain, especially with cuts in personnel and funding at the U.S. Fish and Wildlife Service.