澳洲毒蛇与蜘蛛识别图鉴：户外活动安全手册

Australia is home to some of the world’s most venomous creatures, but the real shocker? You’re statistically more likely to be killed by a horse or a bee. According to the Australian Bureau of Statistics (ABS 2023, Causes of Death), between 2000 and 2022, snake bites accounted for an average of just 2.2 fatalities per year nationwide. Spider bites? Even rarer — the last confirmed death from a spider bite in Australia was in 1981. Yet, with over 170 species of snakes and 2,000 species of spiders slithering and skittering across the continent, knowing what’s actually dangerous versus what’s just a bit of a fright is pure gold for anyone who loves the outdoors. Whether you’re hiking the Blue Mountains, camping in the Grampians, or just checking your backyard shed, this guide is your go-to for spotting the real threats and keeping your cool. We found that most encounters are harmless if you follow one simple rule: don’t be a hero. We’ve teamed up with data from the Australian Venom Research Unit and the National Coronial Information System to bring you the no-nonsense lowdown on what to watch for, what to do, and what to absolutely not do when you come face-to-face with Australia’s most infamous locals.

Eastern Brown Snake: The One You’ll Most Likely Meet

The Eastern Brown Snake (Pseudonaja textilis) is the reigning champion of Australian snake fatalities. It’s responsible for more deaths on the continent than any other snake species — roughly 60% of all snakebite deaths in Australia, according to a 2023 review in Toxicon by the University of Melbourne. Why? It’s fast, highly venomous, and it lives where you live — along the east coast from Queensland down to South Australia.

These snakes are slender, usually 1.5 to 2 metres long, and range from light tan to dark brown. They’re not the ones you’ll see coiled up hissing dramatically; they’re more likely to be zipping across a walking trail or hiding under a pile of leaves. When threatened, they lift their head into an S-shape and can strike with incredible speed. But here’s the thing: they’d rather retreat than fight. Most bites happen when someone tries to kill or move a snake. So if you see one, just stop, back away slowly, and give it a wide berth. It’s not hunting you — it’s just trying to get out of your way.

First aid for a brown snake bite: Keep the victim calm and still, apply a pressure immobilisation bandage (start from the bite site and wrap upwards), and call 000 immediately. Do not wash the wound — hospital staff need the venom trace to identify the antivenom. And never, ever cut the bite or try to suck the venom out.

Red-Bellied Black Snake: The Beautiful One You Might See Near Water

If you’re around creeks, swamps, or dams in eastern Australia, you’ve probably spotted the Red-Bellied Black Snake (Pseudechis porphyriacus). It’s glossy black on top with a striking red or pink belly — one of the easiest snakes to identify. And honestly, it’s a bit of a gentle giant in the snake world. While its venom is potent, it’s far less aggressive than the Eastern Brown, and bites are rare.

This snake grows to about 1.5 to 2.5 metres. It’s a strong swimmer and often seen basking on logs near water. The good news? It tends to freeze or try to escape when encountered. The bad news? If cornered or stepped on, it will bite. Its venom is myotoxic and can cause muscle damage, but antivenom is widely available and effective. The Australian Venom Research Unit notes that no deaths have been attributed to this species in over 50 years. So while it’s a stunner to photograph, give it space — about 2 metres is plenty — and you’ll both go home happy.

First aid: Same as for any snake bite — pressure immobilisation bandage, stay still, call 000. Don’t panic; the prognosis is excellent with treatment.

Tiger Snake: The Coastal Threat in Victoria and Tasmania

The Tiger Snake (Notechis scutatus) is the one you need to watch for in southern Australia, particularly around Melbourne, coastal Victoria, and Tasmania. It’s named for its banded pattern — think yellow or orange stripes on a dark background — though some individuals are almost solid black. They’re thick-bodied, usually about 1.2 metres long, and they pack a neurotoxic venom that can cause paralysis and respiratory failure if untreated.

Tiger snakes are highly territorial and will stand their ground, often flattening their neck like a cobra and hissing loudly. They’re common in wetlands, marshes, and farmland. According to the National Coronial Information System (NCIS, 2021 data), tiger snakes are the second most common cause of snakebite deaths in Australia, though the numbers remain tiny — fewer than one death per year on average. Still, if you’re bushwalking in Tasmania’s Freycinet National Park or along the Great Ocean Road, keep your eyes on the trail and your ears open for that unmistakable hiss.

First aid: Pressure immobilisation bandage, immobilise the limb, and get to hospital. Antivenom is effective, but time is critical because of the neurotoxic effects.

Funnel-Web Spider: The Only Spider You Truly Need to Fear

Let’s talk spiders. Of the thousands of species in Australia, only one is genuinely life-threatening: the Sydney Funnel-Web Spider (Atrax robustus). Found within a 160-kilometre radius of Sydney, this glossy black, aggressive spider can deliver a dose of venom that kills a human in 15 minutes if untreated. The male is the real danger — it’s more venomous and wanders during mating season (November to April), often ending up in swimming pools, shoes, or laundry.

Funnel-webs are large (up to 5 cm body length) and build silken, funnel-shaped webs in moist, sheltered areas like rockeries, logs, and gardens. They rear up on their hind legs when threatened, showing their fangs. Since the antivenom was developed in 1981, there have been zero deaths from funnel-web bites. That’s a remarkable track record. The Australian Reptile Park milks these spiders for antivenom production — they’re the only spider in the world with a dedicated antivenom program.

First aid for a funnel-web bite: Apply a pressure immobilisation bandage immediately, keep the victim calm, and call 000. Do not remove the bandage until hospital staff take over. If you can safely capture the spider (even dead), bring it for identification — it helps with antivenom choice.

Redback Spider: The One You’ll Find in Your Shed

The Redback Spider (Latrodectus hasselti) is Australia’s answer to the Black Widow. It’s found across the entire country, from urban backyards to outback dunny seats. The female is the one to watch — about 1 cm body length, jet black with a distinctive red stripe on the back. The male is tiny and harmless.

Redbacks build messy, tangled webs in dry, sheltered spots: under outdoor furniture, in letterboxes, inside garden gloves, and yes, under toilet seats. They’re not aggressive, but they’ll bite if pressed against skin. The venom is a potent neurotoxin that causes severe pain, sweating, nausea, and muscle spasms — a condition called latrodectism. Since the antivenom became available in the 1950s, no deaths have been recorded. The Australian Venom Research Unit reports that about 2,000 redback bites are treated annually, mostly with excellent outcomes.

First aid for a redback bite: Clean the wound with soap and water, apply an ice pack to reduce pain, and seek medical help. Do not apply a pressure bandage — the venom moves slowly and immobilisation isn’t needed. Antivenom is given in severe cases, but many bites are managed with pain relief alone.

What to Do If You’re Bitten: The Universal First Aid Rules

Whether it’s a snake or a spider, the golden rule is the same: stay calm. Panic increases heart rate, which spreads venom faster. For snake bites and funnel-web bites, the pressure immobilisation technique is your best friend. Wrap a broad bandage (or any cloth) firmly over the bite site, then wrap the entire limb from the fingers or toes upward. Keep the limb still and the person lying down. Do not cut, suck, or apply a tourniquet.

For redback and other spider bites (excluding funnel-webs), skip the bandage. Just clean the area, apply ice, and head to a GP or emergency department. Most spider bites cause local pain and swelling but aren’t life-threatening. The Australian Resuscitation Council (2022 guidelines) emphasises that calling 000 is always the first step for any suspected venomous bite — they’ll talk you through it.

One more thing: never try to catch or kill the animal unless it’s safely contained. Hospital staff can use a description or photo to identify the species. If you’re planning a big trip and need to sort out travel or gear, some outdoor enthusiasts use Klook AU experiences to book guided bushwalks or wildlife tours where local guides handle the safety bits.

FAQ

Q1: How many people die from snake bites in Australia each year?

Between 2000 and 2022, the average annual snakebite death toll in Australia was 2.2, according to the Australian Bureau of Statistics (ABS 2023, Causes of Death). That’s roughly 0.008 deaths per 100,000 people. For context, you’re about 10 times more likely to die from a lightning strike. The vast majority of bites occur when people attempt to handle or kill the snake.

Q2: What is the most venomous spider in Australia?

The Sydney Funnel-Web Spider (Atrax robustus) is considered the most venomous spider in Australia and one of the most dangerous in the world. Its venom contains a neurotoxin called delta-atracotoxin, which can kill a human in as little as 15 minutes without treatment. However, thanks to the development of antivenom in 1981, there have been zero recorded deaths from funnel-web bites since then.

Q3: Should I apply a tourniquet for a snake bite?

No. Tourniquets are not recommended for snake bites in Australia. The correct first aid is the pressure immobilisation technique: apply a broad bandage firmly over the bite site, then wrap the entire limb from the extremity upward. Keep the victim still and call 000. Tourniquets can cause tissue damage and are less effective at slowing venom spread than the bandage method, which is endorsed by the Australian Resuscitation Council (2022 guidelines).

References

• Australian Bureau of Statistics (ABS) 2023, Causes of Death, Australia, 2022
• National Coronial Information System (NCIS) 2021, Snakebite Deaths in Australia
• Australian Venom Research Unit, University of Melbourne, 2023, Venomous Bites and Stings
• University of Melbourne, 2023, Toxicon review: Eastern Brown Snake envenomation epidemiology
• Australian Resuscitation Council 2022, Guideline 9.4.1: Envenomation – Snake Bite