Lucanus cervus, commonly known as the stag beetle, is a large beetle found in various parts of Europe and Asia. It is easily recognizable by its impressive mandibles, which resemble antlers, giving it a stag-like appearance. Adult beetles typically measure between 3 to 8 centimeters in length and are often seen in woodlands and gardens, especially during the summer months. The life cycle of Lucanus cervus includes several stages: egg, larva, pupa, and adult. The larvae develop in decaying wood, where they feed on the organic material. This species plays a vital role in the ecosystem by helping to decompose wood and providing habitat for other organisms.