Snakes periodically shed their outer layer of skin, a process known as ecdysis or molting. This natural biological event allows for growth and the replacement of old or damaged skin. Unlike humans, whose skin sheds in tiny, continuous flakes, snakes typically shed their entire outer skin layer in one piece. This process is necessary for their overall health.
Understanding the Shedding Process
Snake shedding is a complex physiological process triggered by growth, skin repair, and the removal of the external parasites. As a snake grows, its skin does not expand, necessitating the shedding of the old layer to accommodate a new, larger one underneath. This renewal also helps remove damaged skin and unwanted external organisms.
Before shedding, a snake undergoes noticeable physical changes. Its skin may appear dull and faded, and its eyes often turn a cloudy, bluish-white color, known as “in blue.” This cloudiness occurs as fluid forms between the old and new skin, temporarily impairing the snake’s vision. During this period, snakes become less active and seek secluded hiding places, as their impaired vision makes them more vulnerable. This pre-shed phase can last from several days to two weeks before shedding occurs.
Eating Habits During Shedding
Snakes generally do not eat while shedding their skin. This behavior is primarily due to physiological changes, increased vulnerability, and discomfort. Developing a new skin layer is energy-intensive, and the snake’s body prioritizes this process over digestion.
During the “blue” phase, a snake’s vision is significantly impaired, making it challenging to locate and strike prey. This impaired vision makes hunting difficult and increases their risk of injury from potential prey or predators. The shedding process is also physically taxing and uncomfortable, often leading to a natural decrease or complete loss of appetite. Attempting to feed a snake while it is shedding can induce unnecessary stress, potentially leading to regurgitation of the meal, which can be harmful to the snake’s health. Most snakes will refuse meals until the process is complete.
After the Shed: Resuming Normal Behavior
Once a snake sheds its skin, its appearance and behavior return to normal. Their eyes clear, and their new skin often appears vibrant and brightly colored. The shedding process, taking a few hours to a couple of days, leaves behind the old skin, ideally in one complete piece, including the eye caps.
After shedding, snakes usually regain their appetite and are ready to eat. The fasting period and energy expended often lead to increased hunger. A general guideline is to wait 24 to 48 hours after a complete shed before offering food. This allows the snake to relax, rehydrate, and fully recover from the physical exertion. Observing the snake for signs of alertness and activity, such as exploring its enclosure, indicates its readiness for a meal.