Genus Rangifer is the scientific name for the reindeer species, which is indigenous to the Arctic regions of North America, Europe, and Asia. Synonyms for the word Genus Rangifer include Caribou, Rangifer Tarandus, and Arctic deer. These synonyms are often used interchangeably and refer to the same species. The reindeer is known for its distinctive antlers, which are typically found on males during breeding season. They are also well adapted to their cold and harsh habitats and are able to survive in temperatures as low as -40 degrees Celsius. However, their populations are threatened due to habitat loss, hunting, and climate change.