Lyla Lindsey
The coastal taipan (Oxyuranus scutellatus) is a highly venomous snake species native to Australia and the southern edge of New Guinea. It is considered the largest Australian elapid and is known for its highly toxic venom, aggressive behaviour, and impressive length, making it one of the most dangerous snakes in Australia. The coastal taipan's habitat ranges from northern Western Australia and the Northern Territory to the Queensland coast and southern New South Wales. Its presence in populated areas has sparked fear and curiosity, leading to efforts to develop antivenom and understand its behaviour better.
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What You'll Learn
Taipans are found in northern Australia and southern New Guinea
Taipans are highly venomous snakes found in northern Australia and southern New Guinea. There are three species of Taipans: the coastal taipan, the fierce snake or inland taipan, and the Central Ranges or western desert taipan. The coastal taipan is the largest Australian elapid and can grow to a maximum length of 2.9 metres (9.5 feet). It is considered the most dangerous snake in Australia and is responsible for several human deaths. The snake is extremely nervous and alert, and any movement near it is likely to trigger an attack. Its venom affects the nervous system and the blood's ability to clot, leading to symptoms such as headache, nausea, vomiting, paralysis, and internal bleeding.
The fierce snake or inland taipan is smaller, with a maximum length of 1.7 metres (5.5 feet). It is considered to have the most toxic venom of any terrestrial snake globally. The Central Ranges taipan, discovered in 2006, prefers arid sandy habitats. All three species are primarily rodent eaters, with coastal taipans and fierce snakes commonly found in sugarcane plantations.
Taipans are mostly active during the day, especially in the early to mid-morning period. However, they may become nocturnal during hot weather conditions. They are identified by their slender bodies and light brown or beige to dark brown colouration, and yellowish-cream bellies. Their heads are often a lighter creamy colour, resembling the highly venomous eastern brown snake. Taipans are egg-layers, with the coastal taipan depositing clutches of 7 to 17 eggs during the breeding season.
The range of Taipans in Australia extends from northwestern Western Australia, across the Northern Territory, the Cape York Peninsula, and down the eastern Queensland coast into northern New South Wales, as far south as Grafton. They are not found in regions where the maximum winter temperature falls below 20°C (68°F). Taipans are also present in southern New Guinea, with the Papuan taipan described by Australian herpetologist Ken Slater in 1956 based on its distinctive coloration.
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They are the largest Australian elapid
Taipans are considered the largest Australian elapid. They are extremely dangerous and highly venomous snakes that are native to Australia and southern New Guinea. The species is known for its impressive size and powerful venom, making it a significant presence in its diverse environments.
The coastal taipan, or Oxyuranus scutellatus, is the most well-known subspecies of taipan. It is found in northern Australia, particularly in the regions of northwestern Western Australia, the Northern Territory, and eastern Queensland. The range of the coastal taipan extends as far south as Grafton in New South Wales, but it avoids areas with low winter temperatures. This subspecies is highly adaptable, thriving in both coastal and inland habitats.
The Papuan taipan, first described by Australian herpetologist Ken Slater in 1956, is another notable subspecies. It is native to the southern portion of New Guinea and has a similar genetic makeup to the coastal taipan. The Papuan taipan has been the subject of antivenom development, with efforts led by individuals like Kevin Budden, who unfortunately lost his life to a taipan bite.
Taipans are large snakes, typically reaching lengths of 2 meters or more. They are known for their slender build, with long, muscular bodies that enable them to strike with speed and accuracy. The colouration of taipans can vary, with individuals having light brown or coppery bodies and yellowish-cream bellies. The head is often a lighter colour, resembling the non-venomous eastern brown snake.
The fangs of the taipan are a key characteristic that distinguishes it from other elapids. The fangs are exceptionally long, reaching up to 12 mm in length, and are capable of injecting a large amount of highly toxic venom. The venom affects the nervous system and interferes with blood clotting, leading to severe symptoms such as paralysis, internal bleeding, and kidney damage. The taipan's ability to strike multiple times and the speed of its attack make it a formidable predator.
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Coastal taipans are highly venomous
The species Oxyuranus scutellatus, commonly known as the coastal taipan, was described by Wilhelm Peters in 1867. It is the second-longest venomous snake in Australia, with an average length of 2 metres and a maximum length of 2.9 metres. Coastal taipans are light olive or reddish-brown with paler underparts, and their coloration can vary with the seasons, becoming brighter in summer and duller in winter. They are primarily diurnal, active in the early to mid-morning, and may become nocturnal during hot weather.
The coastal taipan is a least-concern species according to the International Union for Conservation of Nature, and its range extends from northwestern Western Australia to northern New South Wales. It inhabits a diverse range of habitats, including monsoon forests, woodlands, and human-modified environments such as sugarcane fields. The species primarily feeds on small mammals and occasionally takes bird prey. While the coastal taipan prefers to avoid conflict, it will aggressively defend itself when threatened, adopting a striking stance with its head and forebody raised.
The toxicity of the coastal taipan's venom has been recognised since the early 20th century, with efforts to develop antivenom beginning in the 1940s. The first taipan-specific antivenom became available in 1955, significantly reducing the fatality rate associated with taipan bites. Despite this, coastal taipans remain highly venomous and dangerous snakes, capable of inflicting multiple bites and injecting large quantities of venom. Their aggressive behaviour when cornered and the speed of their attacks contribute to their reputation as one of the world's most venomous snakes.
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They are considered a least-concern species
The coastal taipan (Oxyuranus scutellatus) is considered a least-concern species by the International Union for Conservation of Nature. This is due to a combination of factors, including its range, behaviour, and the relatively low number of human encounters and fatalities.
The coastal taipan is found in northern Australia and southern New Guinea. Its range extends from north-western Western Australia, the Northern Territory, across the Cape York Peninsula, and south into eastern Queensland and northern New South Wales. It is also found in the Kimberley region of Western Australia. The coastal taipan thrives in a variety of habitats, including along the water and in semi-arid regions.
The species is not considered to be highly aggressive and generally prefers to retreat to shelter when it feels threatened. It is diurnal, hunting during the day, and its diet consists primarily of small to medium-sized mammals, such as the Long-haired Rat Rattus villosissimus. The coastal taipan is the third-most venomous land snake in the world, but its reclusive nature and remote habitat mean that human encounters are rare.
Between 2005 and 2015, coastal taipans were responsible for only 4% (31 cases) of identified snakebite victims in Australia, with no deaths recorded during this period. While there have been a small number of fatalities from coastal taipan bites, the majority of cases have occurred in New Guinea, where the species is more prevalent and comes into contact with humans more frequently.
The low number of human encounters and the relatively small number of fatalities associated with the coastal taipan contribute to its classification as a least-concern species. However, it is important to note that the coastal taipan is still a highly venomous and potentially dangerous snake, and seeking immediate medical attention is crucial in the event of a bite.
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Coastal taipans are often mistaken for the eastern brown snake
The coastal taipan is often regarded as the most dangerous snake in Australia and is feared more than any other Australian snake. It is considered the third-most venomous terrestrial snake in the world, behind the inland taipan and eastern brown snake. Coastal taipans are identified by their slender, light brown body and yellowish-cream belly, with a lighter-coloured head.
The coastal taipan is often mistaken for the eastern brown snake due to its similar colouring and large size. The eastern brown snake is also highly venomous and is considered the second-most venomous land snake in the world. Both snakes are native to Australia and are known to inhabit similar regions, including Queensland and New South Wales.
The coastal taipan can be distinguished from the eastern brown snake by its larger head and narrow neck, as well as its lighter face and snout. The head and neck of the eastern brown snake are the same width. Additionally, the number and arrangement of scales on a snake's body are key elements of identification. The coastal taipan has 21-23 rows of dorsal scales at mid-body, while the eastern brown snake has 17 dorsal scales.
The coastal taipan is diurnal, mostly active in the early to mid-morning, and may become nocturnal in hot weather. It is found in a variety of habitats, including warm, wetter, temperate to tropical coastal regions, monsoon forests, and woodlands. The species changes colour with the seasons, becoming brighter in summer and duller in winter. Juvenile snakes do not appear to undergo this seasonal change.
The venom of the coastal taipan is highly toxic and affects the nervous system and the blood's ability to clot. Symptoms of a bite include headache, nausea, vomiting, collapse, convulsions, paralysis, internal bleeding, myolysis, and kidney damage. The onset of serious symptoms can be rapid, so it is important to seek immediate medical attention if bitten.
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Frequently asked questions
Taipans are found in northern Australia and southern New Guinea. They are found in coastal habitats in northern Western Australia, the Northern Territory, across the Cape York Peninsula, and down to northern New South Wales.
Taipans are highly venomous snakes that are light brown with a yellowish-cream belly. They are diurnal and are mostly active in the early to mid-morning period. They are also Australia's longest venomous snake, with a maximum length of 2.9 metres.
Taipans are considered to be very dangerous due to their highly toxic venom, which affects the nervous system and the blood's ability to clot. Before the development of antivenom in the mid-1950s, a taipan bite meant certain death.
