What kind of animal in the polar is a herbivore?

One notable herbivore in the polar regions is the reindeer, also known as caribou in North America. These animals primarily graze on lichens, mosses, and various tundra vegetation. They are well-adapted to cold environments, with specialized adaptations that allow them to forage efficiently in snowy conditions. Reindeer play a crucial role in the Arctic ecosystem as grazers, helping to maintain the balance of their habitat.