Dynastes hercules is found in rainforest ranging from southern North America to Brazil in South America and also the Lesser Antilles. The adult beetles are among the largest Scarab beetles in the world, ranging from 50 to 170mm in body length. Males have two horns, a cephalic horn which comes off of the lower front of the head and curves upward, and a thoracic horn that comes off of the top of the head (pronotum) and curves downward. The horns of the male beetle, are their most characteristic feature and are often longer than the body. These horns are used as a "claw" in battles between males.