An animal with antlers is a type of mammal that has two large, branched horns on its head. The three most common animals with antlers are ELK (3 letters), DEER (4 letters) and STAG (4 letters). ELK are the largest species of DEER, and are native to North America, Europe and Asia. DEER are smaller than ELK and are found in many parts of the world. Stags are male DEER, and are usually larger than female DEER. All three animals have antlers which they use for protection and to attract mates.