Top 10 Deadliest Creatures In Australia

The Australian continent has its fair share of the world’s deadliest and most dangerous animals. While the existence of these creatures adds to the mystique of Australia, they are to be avoided at all costs.

Box Jellyfish

Box Jelly Fish

One of the deadliest creatures to inhabit the Australian waters is the Box Jellyfish, otherwise known as Sea Wasp. The Box Jellyfish is a bane to anyone who dares swim along the coast of the Great Barrier Reef.  It sticks its 80-centimeter long tentacles into its victim’s body and delivers a whopping lethal dose, killing a 150 pounds person in about three minutes. The venom attacks the nervous system, the cellular structure and body organs. This jellyfish kills more people than do all the sharks, snakes and saltwater crocodiles of Australia.

Irukandji Jellyfish

Irukandji Jellyfish

This deadly 2.5 centimeter long jellyfish is quite hard to spot in the water owing to its tiny size. The venom secreted by this tiny jellyfish is 100 times as potent as that of Cobra venom, and about 1000 times as potent as that of Tarantula venom. Irukandji jellyfish prefer to live in the warmer coastal waters. When this jellyfish attacks, the stingers attach themselves into the victim’s flesh. The sting causes a delayed pain reaction. If sufficient venom is injected, death occurs in minutes. In the last few years, several deaths are attributed every year to the Irukandji jellyfish.

European Honey Bee

honey bee

This humble little bee is the deadliest of all Australian creatures. This bee alone is responsible for an average of 10 deaths per year in Australia.  These bees attack when their hives are disturbed and they swarm all over their ‘attacker’. Multiple stings from these bees results in anaphylactic shock, which leads to Anaphylactic shock and possible heart failure if emergency treatment is not immediately given.



The coastal Taipan is the largest poisonous snake in Australia and the third largest most poisonous land snake in the world. This snake haunts sugarcane fields in search of rats; its dark brown skin allows it to blend in with the earth, making the perfect camouflage. This snake frequents Queensland in the North and in areas where the weather is mild. The Taipan, as a rule, does not come close to human inhabitations; however, if threatened, this snake will keep striking until it delivers a lethal dose of its toxic venom into the human’s body. If not treated with antivenom immediately, almost 75% of all Taipan bites will be fatal.

Saltwater Crocodile

Crocodile eating a shark

Crocodile eating a shark

The Saltwater Croc is the world’s largest reptile, found along Australia’s northern coast and for about 100 kilometers or so inland. The Saltwater Crocodile can be anywhere from 4 to 7 meters long.

It snaps its long jaws around the prey’s body and rolls powerfully, throwing the struggling victim off balance and then drags it underwater. With a powerful crunch of its jaws, the crocodile crushes the bones of the victim’s body. The croc will take nearly any animal that dares to enter its territory, be in on in the water or on dry land.

The Australian Saltwater Crocodile was credited with the death of over 400 Japanese soldiers during the Second World War. However, nowadays, only one or two fatal attacks are reported per year in Australia owing to stringent warning methods and precautions.


Blue Ring Octopus

blue ringed octopus

The Australian Blue Ring Octopus is a deadly poisonous creature that lives in the warm, shallow reefs of Australia. This octopus gets its name from its distinctive blue rings on its tentacles. It paralyzes its victims with venom and uses its beak to tear off pieces, after which it sucks out the flesh. They’re too small to cut a human to pieces. However, they can deliver sufficient venom to paralyze a human and disable respiratory system. Death can occur in a matter of hours or days. Currently, there’s no anti-venom for the blue ring octopus’s venom.

Australian Stonefish

Austraila Stone Fish

Another prime example of Australia’s deadly marine creatures is the stonefish that inhabit shallow coastal waters. Brownish in color, the stonefish has no problem camouflaging itself as a rock, which is why it’s named the stonefish. Each one of its thirteen sharp dorsal spines is filled with extremely toxic venom, toxic enough to kill a human in two hours.

Stepping on a stonefish can be fatal, unless care is given immediately. Deaths by stonefish are hard to confirm but current statistics show 4 to 5 deaths a year owing to this fish.

Australian Brown Snake


Unanimously accepted as one of Australia’s more deadly creatures, the brown snake’s venom can cause death to humans very quickly if immediate care is not given. These snakes are so venomous that even young snakes are capable of killing a human. This 1.5 meter to 2.3-meter long snake usually feeds on mice, rats, small birds, lizards and even other snakes. Eastern Australia is home to these snakes. Less than two people die of brown snakebites in a year in Australia.

Great White Shark

White Shark Cage Diving, Gansbaai
photo credit: Sara&Joachim

The Great White Shark is a solitary animal and is found on all Australian coasts and in other places throughout the World. Equipped with 2,800 sharp slanted teeth that help them hold their prey in their mouths, they usually attack their prey once and wait for the prey to bleed to death. A number of white shark attacks are reported every year; however, increased awareness and immediate emergency care has ensured that these attacks don’t all translate into deaths.

Funnel Web Spider


These spiders lurk around and penetrate people’s shoes with their fangs that are filled with ample venom glands. They can even penetrate through fingernails, leather coats and clothing. You can find these spiders in Victoria, New South Wales, or Queensland. If first aid and antivenom are not administered, death can occur within an hour.

Teena Celis is content developer for gifts for men Company Adrenalin offering over 2000 experiences all across Australia.

Posted by on March 29, 2011. Filed under Animals, The List. You can follow any responses to this entry through the RSS 2.0. Both comments and pings are currently closed.

2 Responses to Top 10 Deadliest Creatures In Australia

  1. I’m surprised the Redback spider didn’t make the list…

  2. arandomguythatlovesjellyfish

    if they are in order then it’s wrong cos irukandji has got to be the deadliest animal in the world!!!