how had the caribou adapted to the biome tundra

The caribou have adapted to the harsh conditions of the tundra biome by developing thick, insulated fur that helps keep them warm. Their hooves are also adapted to the snow, with a wide base that provides a better grip and prevents them from sinking into the snow. Additionally, their hooves are hollow, which helps them stay light and agile. Finally, caribou have large nasal cavities that warm the air before it enters their lungs, making it easier to breathe in the cold air. All of these adaptations help caribou survive and thrive in the harsh tundra biome.