what is the difference between a deer and a reindeer

Deer are a broader category of animals that includes many different species, such as white-tailed deer, moose, caribou, and reindeer. Reindeer, also known as caribou, are a specific type of deer that are native to the Arctic regions of the world. They are characterized by their large antlers, which are shed annually, and their thick fur that helps them survive in the cold weather. While all reindeer are deer, not all deer are reindeer.