Margarita Linn

Margarita Linn

Modified & Updated: 29 Jan 2024


The Dubois’ Sea Snake is a mesmerizing creature that resides in the coastal waters of Southeast Asia. With its vibrant colors and sleek body, this sea snake has captured the attention of researchers and nature enthusiasts alike. But there is much more to this elusive serpent than meets the eye. In this article, we will delve into 17 surprising facts about the Dubois’ Sea Snake that will leave you fascinated and eager to learn more about these remarkable reptiles. From their unique hunting techniques to their incredible adaptations, the world of Dubois’ Sea Snakes is full of wonders waiting to be discovered. So, grab your snorkeling gear and get ready to dive into the depths of knowledge about one of the most intriguing creatures of the sea!

Table of Contents

Endemic to Southeast Asia

Dubois’ sea snake is mostly found in the coastal waters of Southeast Asia, specifically in countries such as Indonesia, Malaysia, Thailand, and the Philippines. It is known to inhabit both freshwater and saltwater environments.

Distinctive Appearance

The Dubois’ sea snake features a sleek body, which is typically yellow in color with dark green bands. It has a flattened tail and a head that is distinctively paddle-shaped, enabling it to swim swiftly and navigate through the water with ease.

Venomous Predator

One of the most intriguing aspects of Dubois’ sea snake is its venomous nature. Its venom is highly potent and is composed of various neurotoxins, which allow it to paralyze its prey. Despite this, it poses little threat to humans as it is not overly aggressive.

Aquatic Lifestyle

Dubois’ sea snake is a fully aquatic creature and rarely leaves the water. It has adapted to life in the ocean, with its compressed body and flattened tail serving as excellent adaptations for efficient swimming.

Unique Respiratory System

Unlike most snakes, Dubois’ sea snake possesses a specialized respiratory system that enables it to extract oxygen from both air and water. This adaptation allows it to remain underwater for extended periods.

Remarkable Diving Abilities

Dubois’ sea snake is an excellent diver and can descend to depths of up to 80 meters in search of prey. It has the ability to hold its breath for long durations, thanks to its efficient respiratory system.

Diet and Feeding Habits

These sea snakes primarily feed on a diet consisting of fish and eels. With their venomous fangs, they are able to immobilize and consume their prey with ease. Their flexible jaws allow them to swallow large fishes whole.

Unique Reproductive Behavior

Dubois’ sea snakes exhibit an interesting reproductive behavior known as “breeding aggregations.” During the mating season, multiple males will compete for the attention of a female, forming large groups in the water.

Viviparous Species

Dubois’ sea snake is a viviparous species, meaning that it gives birth to live young rather than laying eggs. This is a rare adaptation among snakes and allows for greater parental care and protection of offspring.


These sea snakes have been known to live for up to 15 years in the wild. However, due to various threats and environmental factors, their lifespan can vary significantly.

Important Ecological Role

Dubois’ sea snakes play a crucial role in their ecosystem by helping to control the population of their prey species. By regulating the numbers of fish and eels, they contribute to maintaining the balance of the underwater ecosystem.

Threats and Conservation

Unfortunately, Dubois’ sea snake populations are facing several threats, including habitat loss, pollution, and accidental capture in fishing nets. Conservation efforts are underway to protect these remarkable snakes and their fragile habitats.

Elusive Nature

Dubois’ sea snakes are relatively elusive and are not frequently encountered by divers or snorkelers. Their ability to blend in with their surrounding environment and their preference for deeper waters make them harder to spot.

Adaptability to Salinity

One impressive feature of Dubois’ sea snake is its ability to tolerate a wide range of salinities. They can survive in both freshwater and saltwater environments, making them highly adaptable to various habitats.

Courtship Display

During the breeding season, male Dubois’ sea snakes perform elaborate courtship displays to attract females. These displays often involve intricate body movements and vibrant colorations to stand out and gain the attention of potential mates.

Range of Sizes

Dubois’ sea snake exhibits a wide range of sizes, with adults typically ranging from 1 to 1.5 meters in length. However, larger specimens measuring up to 2 meters have been recorded.

Fierce Swimmers

Dubois’ sea snakes are incredibly adept swimmers, using their muscular body and paddle-like tail to propel through the water effortlessly. They can reach impressive speeds and are known for their agility.

In conclusion, the 17 surprising facts about Dubois’ sea snake demonstrate the incredible adaptations and unique characteristics of this remarkable reptile. From their venomous nature and aquatic lifestyle to their distinctive appearance and reproductive behaviors, these snakes continue to intrigue and fascinate those who study them. However, their conservation is of utmost importance to ensure their survival in the face of numerous threats. With ongoing efforts to protect their habitats and raise awareness, we can hope to preserve the beauty and biodiversity of these incredible creatures for future generations.


Dubois’ Sea Snake is a fascinating creature with a rich history and unique characteristics. From its elongated body to its venomous bite, this snake has captivated researchers and wildlife enthusiasts alike. Whether it’s the snake’s ability to survive in extreme marine environments or its intriguing breeding habits, there is no shortage of surprising facts to discover. As we continue to explore and learn more about Dubois’ Sea Snake, we can gain a better understanding of the incredible diversity and adaptability of the animal kingdom.


1. Where can Dubois’ Sea Snakes be found?

Dubois’ Sea Snakes are primarily found in the waters of the Indo-Pacific region, including coastal areas of Southeast Asia and Northern Australia.

2. Are Dubois’ Sea Snakes dangerous?

Yes, Dubois’ Sea Snakes are venomous and should be treated with caution. However, they are not aggressive towards humans and will only bite if threatened or provoked.

3. How long can Dubois’ Sea Snakes grow?

On average, Dubois’ Sea Snakes can reach lengths of 1 to 1.5 meters, although there have been reports of individuals exceeding 2 meters.

4. Do Dubois’ Sea Snakes lay eggs or give birth to live young?

Dubois’ Sea Snakes are ovoviviparous, which means they retain the eggs inside their bodies until they hatch, giving birth to live young.

5. What is the diet of Dubois’ Sea Snakes?

Dubois’ Sea Snakes primarily feed on fish and other small marine creatures. Their diet consists mainly of eels, gobies, and small crustaceans.