Blue Tongue Skink Open Mouth

Imagine coming face to face with a creature that greets you with its vibrant blue tongue. That’s precisely what blue tongue skinks, an enchanting species of lizard, do when they open their mouths. These captivating reptiles, known for their distinctive blue tongues, are intriguing creatures that have captured the curiosity of nature enthusiasts all around the world. With their striking appearance and unique behavior, blue tongue skinks are a fascinating addition to the animal kingdom.

Blue Tongue Skink Open Mouth

Anatomy of a Blue Tongue Skink

Head structure

The head of a Blue Tongue Skink is triangular in shape and slightly elongated. It is equipped with a very distinctive feature – a blue tongue. This tongue is thick, fleshy, and wide, and it can be extended far beyond the mouth. The head is also adorned with two prominent eyes, which are usually clear and bright when the skink is healthy.

Mouth and jaws

Blue Tongue Skinks have a relatively large mouth compared to their body size. Their jaws are strong and capable of delivering a powerful bite if necessary. The mouth is designed to eat a variety of foods, including plants, fruits, vegetables, and even small invertebrates. The skink’s teeth are sharp and can be used for tearing apart prey or crushing plant matter.

Teeth and dental care

Blue Tongue Skinks have a set of robust teeth that are well-suited for their omnivorous diet. Dental care is essential to ensure their teeth stay healthy and functional. Providing appropriate chew toys or objects can help wear down their teeth naturally. Regular veterinarian check-ups are also important to identify any dental issues early on and ensure proper dental hygiene for your skink.

Understanding Blue Tongue Skink Behavior

Normal behavior

Blue Tongue Skinks are generally docile and calm reptiles. They spend most of their time exploring their environment, basking in the sun, and foraging for food. When feeling threatened or defensive, they may often exhibit certain behaviors, such as hissing, biting, or even opening their mouths wide.

Open mouth gesture

One behavior commonly observed in Blue Tongue Skinks is the open mouth gesture. This is when the skink opens its mouth wide, displaying its pink or red oral cavity. It may accompany other defensive behaviors like hissing and puffing up its body. It is important to note that the open mouth gesture does not always indicate aggression.

Reasons for opening the mouth

There are several reasons why a Blue Tongue Skink may open its mouth. One common reason is thermoregulation. By opening their mouths, skinks are able to release excess heat and regulate their body temperature. It can also be a stress response or a defensive mechanism to warn potential predators or threat. Additionally, respiratory issues or illnesses can also cause a skink to open its mouth.

Signs of a Healthy Blue Tongue Skink

Clear and bright eyes

A healthy Blue Tongue Skink will have clear and bright eyes. When examining your skink, check for any discharge, cloudiness, or swelling around the eyes. These could be indications of an underlying health issue.

Smooth and shiny skin

The skin of a healthy Blue Tongue Skink should be smooth and shiny. It should be free from any lesions, sores, or signs of shedding problems. If you notice any abnormalities on the skin, such as dryness or discoloration, it is important to monitor the skink closely and seek veterinary advice if necessary.

Active and alert behavior

A healthy skink will be active and alert. It will exhibit normal movement, explore its enclosure, and respond to its surroundings. If your skink appears lethargic, unresponsive, or displays a lack of interest in its environment, it could be a sign of illness or underlying health issues.

Proper eating and drinking

A healthy Blue Tongue Skink will have a good appetite and maintain a regular eating and drinking routine. It should show interest in a variety of food options and consume them readily. Weight loss or a sudden decrease in food intake may indicate a health problem and should be addressed promptly.

Common Reasons for Blue Tongue Skinks Opening Their Mouths


Blue Tongue Skinks rely on external heat sources to regulate their body temperature effectively. By opening their mouths, they can release excess heat and cool down. This behavior is similar to how dogs pant to cool themselves off.

Stress or defense mechanism

When a Blue Tongue Skink feels threatened or stressed, opening its mouth wide can be a defensive gesture. It is a way for them to intimidate potential predators or threats, displaying their oral cavity and making themselves appear larger and more formidable.

Respiratory issues

Respiratory problems can also cause a Blue Tongue Skink to open its mouth. It may be a symptom of an underlying respiratory infection or difficulty breathing. Other signs to look out for include wheezing, excessive mucus, or labored breathing.

Aggressive display

In some cases, a Blue Tongue Skink may open its mouth as part of an aggressive display. This behavior is usually accompanied by hissing sounds and puffing up of the body. It is a warning to potential threats to back off or face potential aggression.

Blue Tongue Skink Open Mouth

Thermoregulation in Blue Tongue Skinks

Importance of temperature for reptiles

Reptiles, including Blue Tongue Skinks, are ectothermic, which means they rely on external heat sources to regulate their body temperature. Maintaining the correct temperature range in their enclosure is essential for their overall health and wellbeing. It allows them to carry out essential metabolic functions and aids in digestion.

Basking and cooling behaviors

Blue Tongue Skinks exhibit basking and cooling behaviors as part of their thermoregulation process. Basking involves exposing themselves to a heat source, such as a heat lamp or under-tank heater, to raise their body temperature. Cooling behaviors, on the other hand, involve seeking out cooler areas, such as shade or hiding spots, to bring their temperature back down.

Mouth opening to release heat

One way Blue Tongue Skinks release excess heat is by opening their mouths. It allows warm air to escape, helping them cool down. By observing this behavior, you can gauge whether your skink is thermoregulating effectively and ensure that its enclosure provides a suitable temperature gradient.

Stress and Defense Mechanism in Blue Tongue Skinks

Recognizing stress signs

It is important to recognize signs of stress in your Blue Tongue Skink to ensure its wellbeing. These signs may include hiding for prolonged periods, refusing food, excessive aggression, attempting to escape the enclosure, or frequently opening its mouth in a defensive gesture. If you notice any of these signs, it is crucial to identify and eliminate potential stressors.

Open mouth as a defensive threat

When a Blue Tongue Skink opens its mouth as a defensive gesture, it is a clear warning sign to potential threats or predators. By displaying their oral cavity and hissing, they intend to intimidate and discourage any potential aggression. It is important to respect their boundaries and give them space when they exhibit this behavior.

Preventing stress for your skink

To prevent or minimize stress for your Blue Tongue Skink, it is essential to provide a suitable and secure enclosure, maintain proper temperatures, offer a varied and nutritious diet, and ensure regular handling and interaction. Minimizing sudden changes in their environment and providing hiding spots can also help reduce stress levels.

Blue Tongue Skink Open Mouth

Respiratory Issues in Blue Tongue Skinks

Common respiratory problems in reptiles

Blue Tongue Skinks, like many reptiles, can be susceptible to respiratory infections or issues. These can be caused by bacterial, viral, or fungal infections. If left untreated, respiratory problems can severely impact a skink’s health and wellbeing, leading to complications or even death.

Open mouth breathing as a symptom

One symptom of respiratory issues in Blue Tongue Skinks is open mouth breathing. Labored breathing, wheezing, or excessive mucus production may also accompany open mouth breathing. If you observe these symptoms, it is crucial to consult a reptile veterinarian promptly for a proper diagnosis and appropriate treatment.

Seeking veterinary assistance

If you suspect your Blue Tongue Skink is experiencing respiratory issues, it is essential to seek veterinary assistance. A reptile veterinarian will perform a thorough examination, potentially including diagnostic tests, to determine the underlying cause of the issue. Treatment options may include antibiotics, supportive care, and environmental adjustments.

Aggressive Displays by Blue Tongue Skinks

Nature of aggression in skinks

While Blue Tongue Skinks are generally docile, they can display aggression in certain situations. Aggression is a natural behavior in skinks, which can be triggered by feeling threatened, territorial disputes, or during mating season. It is important to understand their behavior and respond appropriately to avoid any potential harm.

Mouth gaping and hissing

Mouth gaping and hissing are common aggressive displays in Blue Tongue Skinks. When feeling threatened or attempting to establish dominance, they may open their mouths wide, displaying their oral cavity, and emit hissing sounds. These behaviors are meant to intimidate rivals or potential threats. Avoid provoking or escalating confrontations with your skink to minimize aggression.

Appropriate handling and avoiding confrontations

Proper handling techniques and respecting your skink’s boundaries are crucial in preventing aggressive displays. Give your skink ample time to adjust to its enclosure and human interaction. Avoid sudden movements, handle with gentle confidence, and always wash your hands before and after handling to minimize stress and reduce the chances of aggressive behavior.

Blue Tongue Skink Open Mouth

How to Properly Care for a Blue Tongue Skink

Enclosure setup and temperature gradient

Providing a suitable enclosure for your Blue Tongue Skink is essential for its overall health. Ensure the enclosure is of adequate size and equipped with hiding spots, a basking area, and a temperature gradient that allows the skink to thermoregulate effectively. Use a substrate suitable for burrowing and maintain appropriate humidity levels.

Providing a balanced diet

Blue Tongue Skinks have an omnivorous diet. They require a balanced diet consisting of a variety of vegetables, fruits, and proteins. Leafy greens, squash, berries, insects, and commercially available reptile diets can be included in their diet. It is important to research and provide appropriate food options to meet their nutritional needs.

Meeting hydration needs

Hydration is crucial for Blue Tongue Skinks. Ensure a shallow water dish is available in their enclosure at all times. Additionally, consider providing occasional misting or offering water-rich foods to support their hydration needs. Regularly monitor the water dish for cleanliness and refill as needed.

Regular veterinary check-ups

Blue Tongue Skinks require regular veterinary check-ups to ensure their overall health. A reptile veterinarian will perform a thorough examination, including checking for any signs of illness, dental health, and providing any necessary vaccinations or treatments. Regular check-ups can help catch and address any health issues early on.

When to Consult a Veterinarian

Persistent open mouth behavior

If your Blue Tongue Skink is persistently exhibiting open mouth behavior without any apparent reason, it may indicate an underlying health issue. Consult a reptile veterinarian to rule out respiratory infections or any other underlying health conditions.

Abnormalities in breathing

Any abnormalities in your skink’s breathing, such as wheezing, labored breathing, or excessive mucus, should be taken seriously. These symptoms could be signs of respiratory problems, and immediate veterinary attention is necessary for proper diagnosis and treatment.

Unexplained changes in behavior

If your Blue Tongue Skink displays sudden and unexplained changes in behavior, such as increased aggression, loss of appetite, lethargy, or unusual withdrawal, it may indicate an underlying health issue or stress. Consult a reptile veterinarian to determine the cause and appropriate course of action.

Visible signs of illness or injury

If you notice any visible signs of illness or injury, such as lesions, sores, discoloration, or unexpected weight loss, consult a reptile veterinarian as soon as possible. Early detection and treatment can greatly improve the chances of a positive outcome for your skink.

Remember, always provide a safe and suitable environment for your Blue Tongue Skink, monitor their behavior and health closely, and seek professional advice when needed. With proper care and attention, these fascinating reptiles can thrive and provide years of companionship.

Blue Tongue Skink Open Mouth