Blue Tongue Skink Vs Tegu

So you’re curious about the battle of the reptiles, pitting the formidable Blue Tongue Skink against the mighty Tegu. These two creatures may share a scaly appearance, but they couldn’t be more different in terms of size, behavior, and habitat. While the Blue Tongue Skink charms with its distinctive blue tongue and docile nature, the Tegu boasts impressive strength and a voracious appetite. Prepare to be enthralled as we compare and contrast these intriguing reptiles, uncovering the unique qualities that make them both remarkable in their own way.

Physical Characteristics

Blue Tongue Skink

The Blue Tongue Skink, also known as the Eastern Blue Tongue Lizard, is a fascinating reptile with a distinct blue tongue. This species typically has a robust body, short legs, and a flat, triangular head. They can grow to be quite large, with adults reaching lengths of 18-24 inches. Blue Tongue Skinks have smooth scales that vary in color and pattern, ranging from shades of brown to gray or even orange.


The Tegu, scientifically known as Salvator merianae, is a large species of lizard native to South America. Tegus are known for their powerful build, muscular tails, and broad heads. They can grow to be even larger than Blue Tongue Skinks, with adults measuring up to 3-4 feet in length. Tegus have rough scales that are arranged in a unique pattern, often featuring a combination of black, white, and red or golden hues.

Natural Habitat

Blue Tongue Skink Habitat

Blue Tongue Skinks are native to Australia and can be found in a wide range of habitats, from arid deserts to grasslands and even woodlands. They are adaptable creatures and can thrive in both hot and cold climates. These skinks are primarily ground-dwelling creatures, often seeking shelter under rocks, logs, or in burrows.

Tegu Habitat

Tegus are native to the tropical forests and savannas of South America. They prefer dense vegetation and are often found near bodies of water such as rivers, swamps, or marshes. Tegus are excellent climbers and spend a considerable amount of time in trees. They are well-suited to the warm and humid environments of their native habitats.

Blue Tongue Skink Vs Tegu

Dietary Preferences

Blue Tongue Skink Diet

Blue Tongue Skinks are omnivorous reptiles with a varied diet. In the wild, they primarily feed on plant matter such as fruits, leaves, flowers, and berries. They also consume insects, snails, and even small vertebrates like mice. In captivity, it’s important to provide them with a balanced diet that includes both plant material and protein sources.

Tegu Diet

Tegus are opportunistic carnivores, meaning they primarily eat meat but can also consume plant matter. Their diet consists of a wide variety of foods, including small mammals, birds, eggs, insects, and even carrion. Tegus also eat fruits, vegetables, and occasionally seeds, making them more flexible in terms of dietary preferences.

Temperament and Behavior

Blue Tongue Skink Behavior

Blue Tongue Skinks are known for their calm and docile nature, making them popular pets among reptile enthusiasts. They are generally slow-moving creatures, preferring to bask in the sun or leisurely explore their surroundings. However, they can become defensive if threatened, and may hiss or inflate their bodies to appear larger.

Tegu Behavior

Tegus are highly intelligent and curious reptiles. They are often described as having a more active and alert behavior compared to Blue Tongue Skinks. Tegus are known to be opportunistic hunters and are known for their excellent digging and swimming abilities. While they can be tame and bond with their owners, they can also display territorial behavior if not properly socialized.

Blue Tongue Skink Vs Tegu

Lifespan and Size

Blue Tongue Skink Lifespan

Blue Tongue Skinks have relatively long lifespans compared to other reptiles, with some individuals living up to 20 years or more. The lifespan of a Blue Tongue Skink can be influenced by various factors, including genetics, diet, and overall care.

Tegu Lifespan

Tegus have a similar lifespan to Blue Tongue Skinks and can live for 15-20 years with proper care. Providing a balanced diet, appropriate housing, and regular veterinary check-ups can contribute to the longevity of these reptiles.

Blue Tongue Skink Size

Blue Tongue Skinks are considered medium-sized lizards, with adults reaching lengths of 18-24 inches. They have a sturdy build and can weigh between 1.5 to 3.5 pounds. Males tend to be slightly larger than females.

Tegu Size

Tegus can grow to be quite substantial in size compared to Blue Tongue Skinks. Adult Tegus can measure 3-4 feet in length, including their tails. They are also heavier, with males weighing between 10-20 pounds and females usually being slightly smaller.


Blue Tongue Skink Reproduction

Blue Tongue Skinks are viviparous, meaning they give birth to live young rather than laying eggs. Breeding season usually occurs during the warmer months, and females can have multiple litters throughout the year. Gestation lasts for around 3-4 months, and the female can produce 5-25 offspring per litter.

Tegu Reproduction

Tegus, on the other hand, are oviparous reptiles, meaning they lay eggs. Breeding season for Tegus typically falls during the spring and summer months. The female will dig a nest in the ground and lay a clutch of 10-50 eggs. The eggs are then incubated for approximately 2-3 months until they hatch.

Blue Tongue Skink Vs Tegu

Interaction with Humans

Blue Tongue Skink as Pets

Blue Tongue Skinks are increasingly popular as pets due to their gentle nature and ease of care. They can be easily tamed and bond with their owners, often recognizing them and showing signs of affection. Blue Tongue Skinks require a suitable enclosure with proper heating, lighting, and a varied diet to thrive in captivity.

Tegu as Pets

Tegus are also kept as pets by reptile enthusiasts, although they require more space and specific husbandry requirements compared to Blue Tongue Skinks. Tegus need large enclosures with ample hiding spots, appropriate temperatures, and a varied diet. They can be socialized and become relatively tame, but owners should be prepared for their active and exploratory nature.

Legal Restrictions

It is essential to research and understand the legal restrictions and regulations surrounding the ownership of Blue Tongue Skinks and Tegus before considering them as pets. Some regions or countries may have specific laws regarding the import, possession, or sale of these reptiles.

Veterinary Care

Blue Tongue Skink Veterinary Care

Regular veterinary check-ups are crucial for the overall health and well-being of Blue Tongue Skinks. A reptile-experienced veterinarian can provide guidance on proper nutrition, habitat conditions, and detect any potential health issues. Routine examinations, fecal screenings, and vaccinations (if necessary) should be part of their veterinary care routine.

Tegu Veterinary Care

Tegus also require regular veterinary care to maintain their health. Owners should seek out a veterinarian familiar with reptile medicine to provide routine check-ups, parasite screenings, and necessary vaccinations. It’s important to monitor their diet, body condition, and behavior to ensure they are thriving in captivity.

Blue Tongue Skink Vs Tegu

Conservation Status

Blue Tongue Skink Conservation Status

The conservation status of different Blue Tongue Skink species varies depending on their specific habitat and location. While some populations may be stable, others are facing threats due to habitat loss, fragmentation, and poaching. The conservation efforts for Blue Tongue Skinks focus on preserving their natural habitats and implementing measures to reduce illegal trade.

Tegu Conservation Status

Tegus are considered a species of least concern on the IUCN Red List, indicating that they are not currently facing any significant threats to their populations. However, habitat destruction and fragmentation can still pose risks if not properly managed. Monitoring their populations and protecting their natural habitats are essential for their long-term conservation.


In summary, both the Blue Tongue Skink and Tegu are fascinating reptiles with unique physical characteristics, natural habitats, and dietary preferences. While Blue Tongue Skinks are known for their docile behavior and adaptability, Tegus are valued for their intelligence and active nature. Both species have specific care requirements as pets, and it’s essential to consider the legal restrictions and provide appropriate veterinary care. Understanding their conservation status highlights the importance of preserving their habitats and ensuring their long-term survival. Whether you choose a Blue Tongue Skink or a Tegu as a pet, they can make wonderful companions for reptile enthusiasts willing to provide them with the care and attention they require.

Blue Tongue Skink Vs Tegu