However, normal reindeer have very interesting hooves that change according to the season. In the winter, the pads of their paws are smaller, leaving more room for the hoof to cut through the snow. This allows them to run without slipping and to dig for roots, as reindeer are herbivorous animals that mostly feed on moss, grasses and some leaves, although they may get fish and rodents every now and then. In the summer, their hooves are softer so that they can walk better on the exposed ground.