It will dip its head completely beneath the surface to get at succulent roots. Moose are strong swimmers and have been known to dive underwater in order to yank up plants from the bottom. They can remain underwater for a full minute before coming up for air. Cows will also roll in it. Bulls do not gather a harem, but instead stay with one cow for about a week and then with another.
Bulls thrash brush and bark with their antlers, marking their territory.
Occasionally bulls will battle, but generally threat displays prompt one to withdraw. If horns interlock, both may die. After a gestation of 8 months, one or two calves are born. Weak at birth, the gangling calves remain hidden and inactive for several days. They are light colored but their coat quickly turns dark brown.