Does anyone know if grey wolves attack native alpine bison, or bison at all? packs or just a wolf.

answer:

wolves learned to kill bison and killed more bison where elk were absent or scarce. common to all of the packs is that 95 percent of bison taken by wolves are killed in the winter. the more severe the winter, the more bison wolves will kill.

answer; gravity pulls glaciers down hill and as glaciers flow it pick up rocks and soil;