MSs of male and female musk-oxen on rocky hillside, male follows female and mounts her twice (1:23). MSs of large male in plain and on hillside (0:36). LS of male smelling female (0:52). MLS following male walking in plain, smelling fermales (1:48). LS of three females and a calf galloping across plain (0:41). HALSs through heat waves of male mounting female several times (1:25).