10 of the Deadliest Snakes in Australia

A.H Blog
5 min readJun 13, 2024

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1. Red-Bellied Black Snake

One of the most common Australian snakes to be spotted is the red-bellied black snake, despite not being considered “aggressive.” Common habitats for red-bellied black snakes include streams, swamps, and lagoons; they can also be found in woods, woodlands, grasslands, and even urban areas. The shy red-bellied black snake will attempt to escape if it comes into contact with people. When the snake feels threatened, though, it frequently lifts its head and forebody above the ground and hisses in imitation of an assault. The snake only bit people who really bothered it.

2. Lowlands Copperhead

The snake’s brown or yellowish skin gives it the nickname “copperhead.” They reside in Australia’s high-rainfall areas, which are typically colder than other places. This snake, true to its name, lives close to marshes and swamplands and also favors low vegetation. When provoked, the lowlands copperhead shares the ability to raise its head off the ground with the red-bellied black snake. Hissing sounds accompany this move. One of Australia’s most venomous snakes, it only bites when it feels extremely threatened.

3. King Brown Snake

The king brown snake, sometimes referred to as the “mulga snake,” is the longest venomous snake in Australia, reaching a maximum length of 2.5 meters when fully grown. While it is more common in low-lying areas, this snake can also be found in grasslands and forests. The royal brown snake has a 20–30 year lifespan. King brown snakes will puff up their bodies and hiss by swaying their heads and flattened necks in response to danger. If they feel seriously threatened, they will snap and attack.

4. Western Brown Snake

Although the western brown snake is known for its agility, it is also regarded as a “nervous” snake. When these snakes feel threatened, their initial instinct is to hide. The snakes will gape at the threat and rear up in a “S” shape if they are pushed further. If the snake is provoked more, it can bite swiftly and run away. This is one of the most venomous snakes in Australia, and it usually inhabits dry areas like grasslands and woods.

5. Death Adder

The death adder, also known as the common death adder, is regarded as one of the world’s most venomous snakes, despite its small size. Similar to the western brown snake, the death adder prefers arid environments and can be found in forests, grasslands, and woodlands. Being a patient predator, death adders will wait several days to capture their prey. Their environment provides for excellent camouflage, which is advantageous for hunting. Death adders’ tails feature a small overhang that gives them a worm-like appearance. The overhang serves as “bait” for possible victims.

6. Tiger Snake

The tiger snake is more aggressive than the snake species we have read about thus far. You will undoubtedly come across this name when looking up the name of the world’s most venomous snake. It favors wetlands over dry land and is tiny in size. They can be seen along river or creek systems. Tiger snakes engage in a display of menacing behavior when provoked. When pressed too hard, they hiss and lash out at the threat with a strong bite. Humans can die from the neurotoxins, hemolysins, coagulants, and myotoxins found in tiger snake venom, which is incredibly poisonous.

7. Coastal Taipan

The diurnal coastal taipans are closely related to the lethal inland taipans. This species, which is primarily found in wetlands and monsoon forests, enjoys warm tropical climates. Because sugarcane fields and forests have an abundance of prey, these species likewise favor them. Like other snakes, coastal taipans prefer to flee rather than fight, but in the event of a serious threat, they will snap viciously. The teeth of the coastal taipan can reach a length of 12 mm, and their bites are strong, precise, and numerous.

8. Eastern Brown Snake

The second deadliest snake in the world, the eastern brown snake, is likewise a diurnal species. Open environments, including savannah grasslands, scrublands, and forests, are preferred by these snakes. Mountains and rainforests are not home to them. In both rural and urban locations where there are human habitations, eastern brown snakes can flourish.

The snakes view human disturbance as a threat, but in reality, they view these regions as opportunistic feeding grounds where they can find prey such as tiny rodents, mice, and birds. The eastern brown snake rarely mounts a defensive attack unless it perceives itself to be in grave danger or to be cornered. The majority of fatal snake bites in Australia are caused by the eastern brown snake.

9. Belcher’s Sea Snake

Small in stature with a timid and docile nature, the belcher’s sea snake is the most venomous sea snake. The snake lives mostly underwater and can hold its breath for almost 7 to 8 hours before resurfacing to grab air. This snake is abundantly found in the warm waters of the Indian Ocean around the Gulf of Thailand, the Solomon Islands, and the northwest coast of Australia (around the North Territory and Queensland). Belcher’s sea snake bites are extremely dangerous, and the venom can kill a victim in under 30 minutes.

10. Inland Taipan

The most lethal terrestrial snake in the world is the inland taipan because of its extremely poisonous venom. This snake nests in the deep breaking clays and cracking loams of the floodplains, preferring clayish terrain. The snake can conceal itself on these grounds and ambush its prey more easily. Despite its reputation as a vicious snake, the inland taipan is actually a timid species that attacks only when provoked, much like other snakes. When threatened, the snake raises its forebody in a tight, low S-shaped curve and points its head in the direction of the aggressor. When the offender disregards the warning, the snake snaps to attention and bites.

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