The larvae, on the other hand, eat a great deal of rotting wood or the compost in which they live. In spite of their size, they do not eat very much. Adults feed on nectar, plant sap and fruit. As with all beetles, the Rhinoceros Beetle larvae (grubs) hatch from eggs and develop into pupae and these eventually develop into adult beetles. Their larval stage is long, several years in some species. If a squeaking beetle is examined closely, the abdomen can be seen moving in time with the squeaks. The hissing squeak is merely a bluff and is produced by rubbing the abdomen against the ends of the wing covers. The fearsome appearance of these beetles is increased by the loud hissing squeaks they give when disturbed. During the day, they hide under logs or in vegetation and are invisible from the few predators big enough to want to eat them. The best protection they have from predators is their usually large size combined with being nocturnal (activity being at night).

Using its horns, it can dig its way out of a sticky situation by burying itself underground, escaping danger. Scientists believe that the beetle has become so strong to be able to forage through heavy litter on the jungle floor and dig its way to safety. The male Rhinoceros Beetles use their horns in mating battles against other males. The two horns almost meet and by moving its head the beetle can pinch weakly with them. They have two horns, one on the top of the head and the other projecting forward from the middle of the thorax. Rhino Beetles reach 60 millimetres in length. The Rhinoceros Beetle is aptly named because it has horns on its head, very much like the rhinoceros does. Rhinoceros Beetles are among the largest of beetles in the world. The Rhinoceros Beetle (or Rhino Beetle) belongs to the subfamily (Dynastinae) and is part of the family of scarab beetles (Scarabaeidae).

Rhinoceros beetles