What do the animals eat in the tundra and how they protect themselves?

In the tundra, animals primarily feed on a diet of grasses, mosses, lichens, and small shrubs. Herbivores like caribou and Arctic hares graze on these plants, while carnivores such as Arctic foxes and wolves hunt smaller mammals and birds. To protect themselves from the harsh, frigid conditions, many tundra animals have developed thick fur or blubber for insulation, and some, like the Arctic fox, change their fur color to white in winter for camouflage against the snow. Additionally, migratory behaviors and burrowing help them avoid extreme weather and predators.