Häutungsvorgang

Häutungsvorgang refers to the process of shedding the outer layer of skin or exoskeleton, a phenomenon common among many animals, particularly arthropods like insects and crustaceans, as well as reptiles and amphibians. This shedding is essential for growth and repair.

In arthropods, the exoskeleton is rigid and does not grow with the animal. Therefore, to increase in size, they must periodically shed this old exoskeleton and emerge with a new, larger one. The old exoskeleton, known as the exuvia, is often discarded or consumed by the animal. During this process, the animal is vulnerable as its new exoskeleton hardens. This period is called the ecdysis.

Reptiles, such as snakes and lizards, shed their skin in patches or in one large piece. This process, called ecdysis or sloughing, helps to remove parasites and damaged skin, and also allows for growth. The old skin becomes dull and opaque before peeling off. Amphibians, like frogs and salamanders, also shed their skin, though often more frequently and they may eat their shed skin.

The Häutungsvorgang is controlled by hormones. In insects, ecdysone is the primary hormone responsible for initiating and regulating molting. This biological necessity allows these creatures to continue their life cycle, grow, and adapt to their environment.