What is "muskoxen"

Usage examples of "muskoxen".

Anyway the town did not look, and for twenty-five years now the couple had lived in the slack backwater of their lonely isolation, as though they had been two muskoxen strayed from the north pole, or two homeless and belated beasts from beyond the glacial period.

They’re facing outward as in pictures of muskoxen, pissing along the invisible line that marks their territory.