Australia has a reputation for reptiles.
Usually a slightly exaggerated one.
Mention Australian wildlife overseas and it doesn’t take long before somebody brings up deadly snakes, enormous crocodiles and the general belief that everything here is waiting behind a rock to kill you.
The reality is far more interesting.
Australia is home to an extraordinary variety of reptiles.
Tiny geckos hunt insects around suburban lights.
Goannas wander through bushland and campsites.
Blue-tongue lizards shelter beneath logs and garden sheds.
Freshwater turtles inhabit rivers and wetlands.
Huge saltwater crocodiles patrol tropical waterways.
And beyond the coastline, sea snakes and marine turtles live in Australia’s warm oceans.
From the tropical north to the dry centre and the waters surrounding the continent, reptiles have adapted to almost every Australian environment.
Some are dangerous.
Most aren’t.
All are part of one of the world’s most remarkable reptile communities.
Australia Really Is a Land of Reptiles
Australia’s climate and long geographic isolation created ideal conditions for reptiles to diversify.
Warm temperatures suit animals that rely largely on external heat to regulate their body temperature.
Then there is the landscape.
Deserts.
Grasslands.
Rainforests.
Rocky ranges.
Woodlands.
Wetlands.
Rivers.
Coastlines.
Each environment created opportunities for different species.
Over millions of years, Australian reptiles adapted to them.
The result is an astonishing range of snakes, lizards, turtles and crocodiles.
And scientists are still discovering and describing species.
Reptiles Don’t Actually Love Being Boiling Hot
We often think of reptiles as animals that simply love heat.
It’s more complicated than that.
Reptiles need to regulate their body temperature by moving between warmer and cooler places.
A lizard may bask in the morning sun to warm itself.
Later it may retreat beneath a rock, into a burrow or under vegetation to avoid overheating.
Desert reptiles are particularly skilled at this.
When the Australian summer becomes brutally hot, many animals simply disappear from sight.
They aren’t necessarily far away.
They’re just sensible enough not to be standing around in 45-degree heat.
Unlike some humans.
Australia’s Deserts Are Full of Reptile Life
Look across a dry inland landscape and it can seem almost empty.
It isn’t.
Australia’s arid regions support an extraordinary variety of reptiles.
Geckos.
Skinks.
Dragons.
Goannas.
Snakes.
Many spend the hottest part of the day underground or hidden in crevices.
Some emerge in the cooler morning and evening.
Others are active at night.
Their colours often blend beautifully with sand, stone and spinifex.
Surviving in the desert requires conserving water, finding shade and coping with enormous temperature changes.
Australian reptiles became very good at it.
The Thorny Devil Looks Exactly Like Its Name Suggests
Few Australian reptiles look stranger than the thorny devil.
Its body is covered with sharp-looking spines.
Its colouring blends with the desert.
It even has what looks like a false head behind its real one, helping confuse predators.
Despite the intimidating appearance, thorny devils aren’t dangerous to people.
They mainly eat ants.
Lots of ants.
One of their most remarkable adaptations involves water.
Tiny channels between scales can help move moisture across the skin towards the mouth.
In an environment where water can be scarce, even small amounts of moisture matter.
The thorny devil looks like something designed to frighten tourists.
In reality, it’s a small ant-eating specialist perfectly adapted to inland Australia.
Goannas Are Australia’s Great Reptile Wanderers
Australia’s monitor lizards are commonly known as goannas.
Some are relatively small.
Others are impressive animals capable of growing well over a metre long.
Goannas occur across much of Australia and have adapted to environments ranging from tropical country to arid inland regions.
They are active hunters and scavengers.
Depending on the species, they may eat insects, eggs, reptiles, birds, small mammals and carrion.
They’re also excellent climbers.
Anyone who has watched a large goanna shoot up a tree knows just how quickly an apparently slow reptile can move when it decides to.
Goannas are among the great characters of the Australian bush.
Preferably admired without leaving your lunch unattended.
Blue-Tongues Became Backyard Australians
Not every Australian reptile lives somewhere remote.
Blue-tongue lizards have adapted remarkably well to suburban life.
Gardens can provide shelter, warmth and plenty of food.
Their most famous feature is, unsurprisingly, the tongue.
When threatened, a blue-tongue may open its mouth and display its large blue tongue.
Combined with a broad head and defensive posture, it can make the animal look rather formidable.
But blue-tongues are generally harmless to people.
They eat insects, snails, vegetation and other foods found around gardens.
For many Australians, seeing a blue-tongue emerge from beneath the shed or wander across the lawn is a welcome sign that native wildlife is still finding room to live alongside us.
Australia Has Dragons
Not fire-breathing ones.
Unfortunately.
Australia’s dragon lizards include some wonderfully distinctive species.
The frill-necked lizard is one of the best known.
Usually the large frill around its neck lies folded down.
When threatened, however, the lizard can open its mouth and extend the frill dramatically.
Suddenly a fairly ordinary-looking lizard becomes something resembling a miniature dinosaur.
Then there are bearded dragons, water dragons and numerous smaller species.
Australian dragons have adapted to environments ranging from tropical woodland to desert country.
And yes, calling them dragons makes them considerably more impressive.
Geckos Come Out When We Go Inside
Some Australian reptiles are most noticeable after dark.
Geckos often appear around houses, sheds and outdoor lights.
Lights attract insects.
Insects attract geckos.
It’s basically reptile takeaway.
Their specialised toes allow many species to climb remarkably smooth surfaces.
Watching a gecko run across a wall or ceiling seems to ignore the normal rules of gravity.
Australia has a huge diversity of native geckos.
Unfortunately, introduced Asian house geckos have also established populations in parts of northern and eastern Australia and can compete with native species.
Even the little lizard on the wall can have a bigger ecological story behind it.
And Then There Are the Snakes
We can’t talk about Australian reptiles without getting to snakes.
Australia is famous for them.
Possibly too famous.
Yes, Australia has some of the world’s most venomous snakes.
The inland taipan is often described as having the most toxic venom of any land snake.
Eastern brown snakes are responsible for serious bites and occur across large areas of eastern Australia.
Tiger snakes, taipans, death adders and several other species can also be dangerous.
But venom toxicity and danger to humans are not the same thing.
Most snakes would much rather avoid us.
Bites are uncommon compared with the enormous number of occasions when people and snakes probably pass near each other without either realising it.
The best response to a snake is simple.
Give it space.
The Eastern Brown Lives Close to People
The eastern brown snake deserves particular respect because its range overlaps heavily with populated and agricultural areas.
It occurs across much of eastern Australia.
Open grasslands, farmland and areas with plentiful rodents can suit it well.
That sometimes brings eastern browns into contact with people.
They are highly venomous and should never be approached or handled.
But snakes aren’t roaming the countryside looking for humans.
If one appears around a house, the sensible option is to keep people and pets away and contact a licensed snake catcher where appropriate.
Trying to become an instant wildlife expert with a broom is not recommended.
Not Every Australian Snake Is Dangerous
Australia also has many snakes that pose little or no serious threat to people.
Pythons are an obvious example.
They aren’t venomous.
Instead, they subdue prey by constriction.
Carpet pythons are found across large parts of Australia and sometimes turn up surprisingly close to homes.
They may shelter in roofs, sheds and trees.
They also help control rodents.
That doesn’t mean everybody wants one moving into the ceiling.
But it does mean Australian snake life is far more varied than the usual collection of “world’s deadliest” headlines suggests.
The Scrub Python Is One of Australia’s Giants
Australia’s largest snakes are pythons.
The scrub python, found in tropical northern Queensland, can reach impressive lengths.
A large python moving through rainforest is a very different animal from a small desert snake hiding beneath a rock.
Again, it shows the diversity of Australian reptiles.
Some species survive in the driest parts of the continent.
Others thrive in humid tropical forests.
There isn’t one typical Australian snake.
There are many.
Australia’s North Belongs to the Crocodiles
Travel far enough north and Australia’s reptile story gets considerably larger.
Australia has two living crocodile species.
The freshwater crocodile and the saltwater crocodile.
Freshwater crocodiles are generally smaller and primarily inhabit freshwater environments.
Saltwater crocodiles — often simply called salties — are another matter.
They are the world’s largest living reptiles.
Large males can exceed five metres.
They are powerful predators and must be treated with enormous respect.
In crocodile country, warning signs aren’t decorative suggestions.
Saltwater Crocodiles Don’t Stay in Salt Water
The name can be misleading.
Saltwater crocodiles can live in salt water.
But they also inhabit rivers, estuaries, creeks, floodplains and freshwater areas.
They can travel considerable distances.
That’s why crocodile safety in northern Australia matters even when the water doesn’t look particularly wild.
A quiet tropical river may look like the perfect place for a swim.
The local crocodile may agree.
For an entirely different reason.
Crocodiles Were Once Hunted Heavily
Crocodiles were extensively hunted in northern Australia during the 20th century.
Their skins were valuable.
By the time legal protection was introduced, saltwater crocodile populations had been severely reduced in many areas.
Protection allowed numbers to recover.
Today crocodiles are once again an important part of northern Australian ecosystems.
Their recovery is a conservation success.
It has also meant people living and travelling in crocodile country need to understand how to coexist safely with a large predator.
Australia’s Reptiles Also Live in the Ocean
The reptile story doesn’t stop at the beach.
Australia’s surrounding oceans are home to marine reptiles including sea snakes and sea turtles.
Sea snakes are particularly diverse in northern Australian waters.
They are true snakes adapted to life at sea.
Many have flattened, paddle-like tails that help them swim.
They breathe air, so they must return to the surface.
Some possess extremely potent venom, although encounters resulting in bites are uncommon.
For these snakes, the ocean isn’t somewhere they occasionally visit.
It’s home.
Sea Turtles Return to Australian Beaches
Australia’s coastline provides important nesting habitat for several species of marine turtle.
Female turtles come ashore to lay eggs in sandy beaches.
Weeks later, tiny hatchlings emerge and make their way towards the sea.
It is one of nature’s most extraordinary journeys.
And a dangerous one.
Birds and other predators wait.
Artificial lights can confuse hatchlings.
Marine debris creates hazards.
Once they reach the ocean, many more challenges remain.
Only a small proportion survive to adulthood.
Yet generations later, adult females can return to nesting areas and continue the cycle.
The Great Barrier Reef Has Reptiles Too
When people imagine the Great Barrier Reef, they usually think of coral and colourful fish.
But reptiles are part of the ecosystem too.
Green turtles feed in coastal and reef habitats.
Other turtle species travel through Australian waters.
Sea snakes hunt among reefs and shallow seas.
Australia’s reptile diversity therefore stretches from the dry heart of the continent to one of the world’s greatest marine ecosystems.
Few groups of animals have adapted to such different environments.
Reptiles Play Important Roles in Australian Ecosystems
Reptiles aren’t simply interesting animals to photograph.
They do important ecological work.
Snakes help control rodents.
Lizards consume insects and other small animals.
Goannas act as predators and scavengers.
Turtles influence aquatic ecosystems.
Crocodiles sit near the top of northern food chains.
Reptiles are also food for other animals.
Remove enough species and the effects spread through the ecosystem.
Even the snake somebody doesn’t particularly want near the back door has a role to play.
Just preferably somewhere other than the back door.
Reptiles Face Plenty of Threats
Australian reptiles have survived enormous natural changes over millions of years.
Modern changes can happen much faster.
Habitat loss affects many species.
Roads kill reptiles as they move through landscapes.
Introduced predators prey on smaller species.
Climate change can alter habitats and temperatures.
Pollution and fishing activity affect marine reptiles.
Then there is one of Australia’s most infamous introduced animals.
The cane toad.
Cane Toads Have Been Disastrous for Some Reptiles
Cane toads were introduced to Queensland in 1935.
The idea was that they would help control pests in sugarcane.
That didn’t work particularly well.
The toads, however, did very well.
They spread across huge areas of northern Australia.
Their toxins can kill native predators that attempt to eat them.
Large goannas and some snakes have been badly affected in areas invaded by cane toads.
It’s one of the clearest examples of how introducing one species can cause problems nobody fully anticipated.
Australian wildlife has been dealing with the consequences ever since.
Reptiles Are Closer Than We Think
You don’t need to travel to Kakadu or cross the Simpson Desert to encounter Australian reptiles.
They live around us.
Skinks dart through gardens.
Geckos hunt near outdoor lights.
Blue-tongues shelter beneath sheds.
Water dragons live beside urban waterways.
Turtles inhabit dams and creeks.
Snakes sometimes move through suburban areas.
Most of the time these animals go about their lives without causing any trouble.
We simply don’t notice them.
Australia’s reptile world isn’t somewhere “out there”.
Part of it may be living underneath the garden mulch.
Australia’s Reptiles Aren’t Monsters
Australia’s dangerous-animal reputation is entertaining.
We’ve certainly encouraged it occasionally.
But treating Australian reptiles as monsters misses what makes them interesting.
A thorny devil collecting moisture in the desert is extraordinary.
A gecko walking across a ceiling is extraordinary.
A sea turtle returning to a nesting beach is extraordinary.
A crocodile surviving as part of an ancient lineage is extraordinary.
Even a venomous snake is an animal adapted perfectly to its environment.
Respect them?
Absolutely.
Fear every reptile you see?
No.
Why Australian Reptiles Are So Remarkable
Australia’s reptiles tell the story of adaptation.
Put an animal in the desert and it must deal with heat and lack of water.
Put it in the rainforest and entirely different challenges appear.
Put it in the ocean and suddenly it needs to swim and still find a way to breathe air.
Australian reptiles found solutions.
Burrow underground.
Change activity times.
Climb trees.
Glide through water.
Develop camouflage.
Use venom.
Grow armour.
Become enormous.
Or remain tiny enough to disappear beneath a leaf.
Millions of years of evolution produced an extraordinary collection of animals.
Australian Reptiles – From the Ocean to the Outback
Australia deserves its reputation as a land of reptiles.
Just perhaps not for the reason people overseas imagine.
Yes, we have venomous snakes.
Yes, enormous crocodiles live across the tropical north.
And yes, occasionally something scaly turns up somewhere we’d rather it didn’t.
But that’s only a tiny part of the story.
Australia’s reptiles live among desert dunes, beneath rocks, inside forests, beside suburban homes, along tropical rivers and beneath the ocean.
Some are predators.
Some eat ants.
Some climb walls.
Some cross entire oceans.
Together they form one of the most diverse and fascinating parts of Australian wildlife.
So perhaps Australia’s reptile reputation doesn’t need correcting.
It just needs expanding.
Because the truly remarkable thing isn’t that some Australian reptiles can kill you.
It’s that they can live almost anywhere.
Australian Reptiles – From the Ocean to the Outback
Australia has a reputation for reptiles.
Usually a slightly exaggerated one.
Mention Australian wildlife overseas and it doesn’t take long before somebody brings up deadly snakes, enormous crocodiles and the general belief that everything here is waiting behind a rock to kill you.
The reality is far more interesting.
Australia is home to an extraordinary variety of reptiles.
Tiny geckos hunt insects around suburban lights.
Goannas wander through bushland and campsites.
Blue-tongue lizards shelter beneath logs and garden sheds.
Freshwater turtles inhabit rivers and wetlands.
Huge saltwater crocodiles patrol tropical waterways.
And beyond the coastline, sea snakes and marine turtles live in Australia’s warm oceans.
From the tropical north to the dry centre and the waters surrounding the continent, reptiles have adapted to almost every Australian environment.
Some are dangerous.
Most aren’t.
All are part of one of the world’s most remarkable reptile communities.
Australia Really Is a Land of Reptiles
Australia’s climate and long geographic isolation created ideal conditions for reptiles to diversify.
Warm temperatures suit animals that rely largely on external heat to regulate their body temperature.
Then there is the landscape.
Deserts.
Grasslands.
Rainforests.
Rocky ranges.
Woodlands.
Wetlands.
Rivers.
Coastlines.
Each environment created opportunities for different species.
Over millions of years, Australian reptiles adapted to them.
The result is an astonishing range of snakes, lizards, turtles and crocodiles.
And scientists are still discovering and describing species.
Reptiles Don’t Actually Love Being Boiling Hot
We often think of reptiles as animals that simply love heat.
It’s more complicated than that.
Reptiles need to regulate their body temperature by moving between warmer and cooler places.
A lizard may bask in the morning sun to warm itself.
Later it may retreat beneath a rock, into a burrow or under vegetation to avoid overheating.
Desert reptiles are particularly skilled at this.
When the Australian summer becomes brutally hot, many animals simply disappear from sight.
They aren’t necessarily far away.
They’re just sensible enough not to be standing around in 45-degree heat.
Unlike some humans.
Australia’s Deserts Are Full of Reptile Life
Look across a dry inland landscape and it can seem almost empty.
It isn’t.
Australia’s arid regions support an extraordinary variety of reptiles.
Geckos.
Skinks.
Dragons.
Goannas.
Snakes.
Many spend the hottest part of the day underground or hidden in crevices.
Some emerge in the cooler morning and evening.
Others are active at night.
Their colours often blend beautifully with sand, stone and spinifex.
Surviving in the desert requires conserving water, finding shade and coping with enormous temperature changes.
Australian reptiles became very good at it.
The Thorny Devil Looks Exactly Like Its Name Suggests
Few Australian reptiles look stranger than the thorny devil.
Its body is covered with sharp-looking spines.
Its colouring blends with the desert.
It even has what looks like a false head behind its real one, helping confuse predators.
Despite the intimidating appearance, thorny devils aren’t dangerous to people.
They mainly eat ants.
Lots of ants.
One of their most remarkable adaptations involves water.
Tiny channels between scales can help move moisture across the skin towards the mouth.
In an environment where water can be scarce, even small amounts of moisture matter.
The thorny devil looks like something designed to frighten tourists.
In reality, it’s a small ant-eating specialist perfectly adapted to inland Australia.
Goannas Are Australia’s Great Reptile Wanderers
Australia’s monitor lizards are commonly known as goannas.
Some are relatively small.
Others are impressive animals capable of growing well over a metre long.
Goannas occur across much of Australia and have adapted to environments ranging from tropical country to arid inland regions.
They are active hunters and scavengers.
Depending on the species, they may eat insects, eggs, reptiles, birds, small mammals and carrion.
They’re also excellent climbers.
Anyone who has watched a large goanna shoot up a tree knows just how quickly an apparently slow reptile can move when it decides to.
Goannas are among the great characters of the Australian bush.
Preferably admired without leaving your lunch unattended.
Blue-Tongues Became Backyard Australians
Not every Australian reptile lives somewhere remote.
Blue-tongue lizards have adapted remarkably well to suburban life.
Gardens can provide shelter, warmth and plenty of food.
Their most famous feature is, unsurprisingly, the tongue.
When threatened, a blue-tongue may open its mouth and display its large blue tongue.
Combined with a broad head and defensive posture, it can make the animal look rather formidable.
But blue-tongues are generally harmless to people.
They eat insects, snails, vegetation and other foods found around gardens.
For many Australians, seeing a blue-tongue emerge from beneath the shed or wander across the lawn is a welcome sign that native wildlife is still finding room to live alongside us.
Australia Has Dragons
Not fire-breathing ones.
Unfortunately.
Australia’s dragon lizards include some wonderfully distinctive species.
The frill-necked lizard is one of the best known.
Usually the large frill around its neck lies folded down.
When threatened, however, the lizard can open its mouth and extend the frill dramatically.
Suddenly a fairly ordinary-looking lizard becomes something resembling a miniature dinosaur.
Then there are bearded dragons, water dragons and numerous smaller species.
Australian dragons have adapted to environments ranging from tropical woodland to desert country.
And yes, calling them dragons makes them considerably more impressive.
Geckos Come Out When We Go Inside
Some Australian reptiles are most noticeable after dark.
Geckos often appear around houses, sheds and outdoor lights.
Lights attract insects.
Insects attract geckos.
It’s basically reptile takeaway.
Their specialised toes allow many species to climb remarkably smooth surfaces.
Watching a gecko run across a wall or ceiling seems to ignore the normal rules of gravity.
Australia has a huge diversity of native geckos.
Unfortunately, introduced Asian house geckos have also established populations in parts of northern and eastern Australia and can compete with native species.
Even the little lizard on the wall can have a bigger ecological story behind it.
And Then There Are the Snakes
We can’t talk about Australian reptiles without getting to snakes.
Australia is famous for them.
Possibly too famous.
Yes, Australia has some of the world’s most venomous snakes.
The inland taipan is often described as having the most toxic venom of any land snake.
Eastern brown snakes are responsible for serious bites and occur across large areas of eastern Australia.
Tiger snakes, taipans, death adders and several other species can also be dangerous.
But venom toxicity and danger to humans are not the same thing.
Most snakes would much rather avoid us.
Bites are uncommon compared with the enormous number of occasions when people and snakes probably pass near each other without either realising it.
The best response to a snake is simple.
Give it space.
The Eastern Brown Lives Close to People
The eastern brown snake deserves particular respect because its range overlaps heavily with populated and agricultural areas.
It occurs across much of eastern Australia.
Open grasslands, farmland and areas with plentiful rodents can suit it well.
That sometimes brings eastern browns into contact with people.
They are highly venomous and should never be approached or handled.
But snakes aren’t roaming the countryside looking for humans.
If one appears around a house, the sensible option is to keep people and pets away and contact a licensed snake catcher where appropriate.
Trying to become an instant wildlife expert with a broom is not recommended.
Not Every Australian Snake Is Dangerous
Australia also has many snakes that pose little or no serious threat to people.
Pythons are an obvious example.
They aren’t venomous.
Instead, they subdue prey by constriction.
Carpet pythons are found across large parts of Australia and sometimes turn up surprisingly close to homes.
They may shelter in roofs, sheds and trees.
They also help control rodents.
That doesn’t mean everybody wants one moving into the ceiling.
But it does mean Australian snake life is far more varied than the usual collection of “world’s deadliest” headlines suggests.
The Scrub Python Is One of Australia’s Giants
Australia’s largest snakes are pythons.
The scrub python, found in tropical northern Queensland, can reach impressive lengths.
A large python moving through rainforest is a very different animal from a small desert snake hiding beneath a rock.
Again, it shows the diversity of Australian reptiles.
Some species survive in the driest parts of the continent.
Others thrive in humid tropical forests.
There isn’t one typical Australian snake.
There are many.
Australia’s North Belongs to the Crocodiles
Travel far enough north and Australia’s reptile story gets considerably larger.
Australia has two living crocodile species.
The freshwater crocodile and the saltwater crocodile.
Freshwater crocodiles are generally smaller and primarily inhabit freshwater environments.
Saltwater crocodiles — often simply called salties — are another matter.
They are the world’s largest living reptiles.
Large males can exceed five metres.
They are powerful predators and must be treated with enormous respect.
In crocodile country, warning signs aren’t decorative suggestions.
Saltwater Crocodiles Don’t Stay in Salt Water
The name can be misleading.
Saltwater crocodiles can live in salt water.
But they also inhabit rivers, estuaries, creeks, floodplains and freshwater areas.
They can travel considerable distances.
That’s why crocodile safety in northern Australia matters even when the water doesn’t look particularly wild.
A quiet tropical river may look like the perfect place for a swim.
The local crocodile may agree.
For an entirely different reason.
Crocodiles Were Once Hunted Heavily
Crocodiles were extensively hunted in northern Australia during the 20th century.
Their skins were valuable.
By the time legal protection was introduced, saltwater crocodile populations had been severely reduced in many areas.
Protection allowed numbers to recover.
Today crocodiles are once again an important part of northern Australian ecosystems.
Their recovery is a conservation success.
It has also meant people living and travelling in crocodile country need to understand how to coexist safely with a large predator.
Australia’s Reptiles Also Live in the Ocean
The reptile story doesn’t stop at the beach.
Australia’s surrounding oceans are home to marine reptiles including sea snakes and sea turtles.
Sea snakes are particularly diverse in northern Australian waters.
They are true snakes adapted to life at sea.
Many have flattened, paddle-like tails that help them swim.
They breathe air, so they must return to the surface.
Some possess extremely potent venom, although encounters resulting in bites are uncommon.
For these snakes, the ocean isn’t somewhere they occasionally visit.
It’s home.
Sea Turtles Return to Australian Beaches
Australia’s coastline provides important nesting habitat for several species of marine turtle.
Female turtles come ashore to lay eggs in sandy beaches.
Weeks later, tiny hatchlings emerge and make their way towards the sea.
It is one of nature’s most extraordinary journeys.
And a dangerous one.
Birds and other predators wait.
Artificial lights can confuse hatchlings.
Marine debris creates hazards.
Once they reach the ocean, many more challenges remain.
Only a small proportion survive to adulthood.
Yet generations later, adult females can return to nesting areas and continue the cycle.
The Great Barrier Reef Has Reptiles Too
When people imagine the Great Barrier Reef, they usually think of coral and colourful fish.
But reptiles are part of the ecosystem too.
Green turtles feed in coastal and reef habitats.
Other turtle species travel through Australian waters.
Sea snakes hunt among reefs and shallow seas.
Australia’s reptile diversity therefore stretches from the dry heart of the continent to one of the world’s greatest marine ecosystems.
Few groups of animals have adapted to such different environments.
Reptiles Play Important Roles in Australian Ecosystems
Reptiles aren’t simply interesting animals to photograph.
They do important ecological work.
Snakes help control rodents.
Lizards consume insects and other small animals.
Goannas act as predators and scavengers.
Turtles influence aquatic ecosystems.
Crocodiles sit near the top of northern food chains.
Reptiles are also food for other animals.
Remove enough species and the effects spread through the ecosystem.
Even the snake somebody doesn’t particularly want near the back door has a role to play.
Just preferably somewhere other than the back door.
Reptiles Face Plenty of Threats
Australian reptiles have survived enormous natural changes over millions of years.
Modern changes can happen much faster.
Habitat loss affects many species.
Roads kill reptiles as they move through landscapes.
Introduced predators prey on smaller species.
Climate change can alter habitats and temperatures.
Pollution and fishing activity affect marine reptiles.
Then there is one of Australia’s most infamous introduced animals.
The cane toad.
Cane Toads Have Been Disastrous for Some Reptiles
Cane toads were introduced to Queensland in 1935.
The idea was that they would help control pests in sugarcane.
That didn’t work particularly well.
The toads, however, did very well.
They spread across huge areas of northern Australia.
Their toxins can kill native predators that attempt to eat them.
Large goannas and some snakes have been badly affected in areas invaded by cane toads.
It’s one of the clearest examples of how introducing one species can cause problems nobody fully anticipated.
Australian wildlife has been dealing with the consequences ever since.
Reptiles Are Closer Than We Think
You don’t need to travel to Kakadu or cross the Simpson Desert to encounter Australian reptiles.
They live around us.
Skinks dart through gardens.
Geckos hunt near outdoor lights.
Blue-tongues shelter beneath sheds.
Water dragons live beside urban waterways.
Turtles inhabit dams and creeks.
Snakes sometimes move through suburban areas.
Most of the time these animals go about their lives without causing any trouble.
We simply don’t notice them.
Australia’s reptile world isn’t somewhere “out there”.
Part of it may be living underneath the garden mulch.
Australia’s Reptiles Aren’t Monsters
Australia’s dangerous-animal reputation is entertaining.
We’ve certainly encouraged it occasionally.
But treating Australian reptiles as monsters misses what makes them interesting.
A thorny devil collecting moisture in the desert is extraordinary.
A gecko walking across a ceiling is extraordinary.
A sea turtle returning to a nesting beach is extraordinary.
A crocodile surviving as part of an ancient lineage is extraordinary.
Even a venomous snake is an animal adapted perfectly to its environment.
Respect them?
Absolutely.
Fear every reptile you see?
No.
Why Australian Reptiles Are So Remarkable
Australia’s reptiles tell the story of adaptation.
Put an animal in the desert and it must deal with heat and lack of water.
Put it in the rainforest and entirely different challenges appear.
Put it in the ocean and suddenly it needs to swim and still find a way to breathe air.
Australian reptiles found solutions.
Burrow underground.
Change activity times.
Climb trees.
Glide through water.
Develop camouflage.
Use venom.
Grow armour.
Become enormous.
Or remain tiny enough to disappear beneath a leaf.
Millions of years of evolution produced an extraordinary collection of animals.
Australian Reptiles – From the Ocean to the Outback
Australia deserves its reputation as a land of reptiles.
Just perhaps not for the reason people overseas imagine.
Yes, we have venomous snakes.
Yes, enormous crocodiles live across the tropical north.
And yes, occasionally something scaly turns up somewhere we’d rather it didn’t.
But that’s only a tiny part of the story.
Australia’s reptiles live among desert dunes, beneath rocks, inside forests, beside suburban homes, along tropical rivers and beneath the ocean.
Some are predators.
Some eat ants.
Some climb walls.
Some cross entire oceans.
Together they form one of the most diverse and fascinating parts of Australian wildlife.
So perhaps Australia’s reptile reputation doesn’t need correcting.
It just needs expanding.
Because the truly remarkable thing isn’t that some Australian reptiles can kill you.
It’s that they can live almost anywhere.
