Moose plod through the forests and marshes, browsing on a wide range of leaves, mosses and lichens. They often feed in the shallows of streams and rivers, nibbling on aquatic vegetation. These large deer have even been seen diving underwater to uproot water plants. In summer, they are most active at dawn and dusk. In winter, they are active throughout the day. They paw the snow to reveal buried plants and twigs. Although moose may gather together to feed, they spend most of the year alone. In the autumn mating season, males fight each other for females.