Australia Battles to Save Last 11 Wild ‘Earless Dragons’ 

This picture taken on March 25, 2024 shows a grassland earless dragon lizard at the Tidbinbilla Nature Reserve located on the outskirts of the Australian capital city of Canberra. (AFP)
This picture taken on March 25, 2024 shows a grassland earless dragon lizard at the Tidbinbilla Nature Reserve located on the outskirts of the Australian capital city of Canberra. (AFP)
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Australia Battles to Save Last 11 Wild ‘Earless Dragons’ 

This picture taken on March 25, 2024 shows a grassland earless dragon lizard at the Tidbinbilla Nature Reserve located on the outskirts of the Australian capital city of Canberra. (AFP)
This picture taken on March 25, 2024 shows a grassland earless dragon lizard at the Tidbinbilla Nature Reserve located on the outskirts of the Australian capital city of Canberra. (AFP)

Australia's grassland earless dragon is no bigger than a pinkie when it emerges from its shell, but the little lizard faces an enormous challenge in the years ahead: avoiding extinction.

As recently as 2019, scientists in Canberra counted hundreds of grassland earless dragons in the wild. This year, they found 11.

In other areas of the country, the lizard has not been seen for three decades.

The earless dragon -- which is light brown and has long white stripes down its body -- measures about 15 centimeters (the size of a US$1 bill) when fully grown.

It lacks an external ear opening and functional eardrum, hence the name.

Australia has four species of earless dragons. Three are critically endangered, the highest level of risk, while the fourth is endangered.

The critically endangered dragons will likely be extinct in the next 20 years without conservation efforts.

"If we properly manage their conservation, we can bring them back," said University of Canberra Professor Bernd Gruber, who is working to do just that.

Breeding programs

Australia is home to thousands of unique animals, including 1,130 species of reptiles that are found nowhere else in the world.

Climate change, invasive plants and animals, and habitat destruction -- such as the 2019 bushfires, which burned more than 19 million hectares (46 million acres) -- have pushed Australia's native species to the brink.

In the past 300 years, about 100 of Australia's unique flora and fauna species have been wiped off the planet.

To save the earless dragons there are several breeding programs under way across Australia, including a bio-secure facility in Canberra's bushlands, which Gruber is overseeing.

On shelves are dozens of tanks that house the lizards -- one to each container -- with a burrow, grass and heat lamps to keep them warm.

The biggest problem is matchmaking, with the territorial female lizards preferring to choose their mates.

This means that scientists must introduce different male lizards to the female until she approves.

If that was not hard enough, scientists must also use genetic analysis to determine which lizards are compatible together and ensure genetic diversity in their offspring.

At any one time, the breeding programs around Australia can have up to 90 earless dragons, which will eventually be released back into the wild.

At the moment, Gruber is looking after more than 20 small lizards that have just hatched. Scientists almost missed the tiny eggs until three weeks ago.

"There is a sense of hope looking over them," he told AFP.

Habitat destruction

Despite the efforts of scientists, the lizards are contending with a shrinking habitat and a changing climate.

Australian Conservation Foundation campaigner Peta Bulling said the lizards only live in temperate grasslands, most of which have been destroyed by urban development.

Only 0.5 percent of grasslands present at the time of European colonization still exist.

Without the lizards, Australia's alpine grasslands could look vastly different.

"We don't understand everything the grassland earless dragons do in the ecosystem, but we can make guesses they play an important role in managing invertebrate populations. They live in burrows in the soil, so they are probably aerating the soil in different ways too," she told AFP.

Bulling said that while it was important to bring the lizard back, it was also vital to protect their habitats, without which the newly saved lizards would have nowhere to live.

"They are highly specialized to live in their habitat but they will not adapt quickly to change," she said.

Last year, scientists rediscovered a small number of another kind of earless dragons after 50 years in an area that is being kept secret for conservation reasons.

Resources are being poured into understanding just how big that population is and what can be done to protect it.



From Oil Spills to New Species: How Tech Reveals the Ocean

Machine learning is helping scientists track down hidden oil spills and pollution. Cris BOURONCLE / AFP
Machine learning is helping scientists track down hidden oil spills and pollution. Cris BOURONCLE / AFP
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From Oil Spills to New Species: How Tech Reveals the Ocean

Machine learning is helping scientists track down hidden oil spills and pollution. Cris BOURONCLE / AFP
Machine learning is helping scientists track down hidden oil spills and pollution. Cris BOURONCLE / AFP

The ocean covers nearly three-quarters of our planet but scientists say we have barely scratched the surface of what lives in our seas.
But new technologies are helping to change that, revealing hidden oil spills, speeding up the discovery of new species and uncovering how light pollution impacts marine life.
Uncovering hidden oil spills
Satellite imagery means large oil spills in the ocean are relatively easily detected. When a tanker crashes or a pipe bursts, scientists know where to look, AFP said.
But smaller pollution events can appear as nothing more than a thin streak against the smooth sea surface -- the maritime equivalent of a needle in a haystack.
"It used to take human analysts weeks if not months to be able to detect a single (small-scale) oil pollution incident," explained Mitchelle De Leon of US-based NGO SkyTruth.
The group harnesses machine learning to comb through large datasets of satellite imagery and find spills that might previously have gone undetected.
SkyTruth has revealed spills in the Red Sea and the Mediterranean and helped expose pollution from shadowy Russian ships.
There are limitations to the technology, including determining the composition of a spill, but the group says it offers an early warning system for scientists, media and governments.
"We think of our tool as a starting point... to make hidden human pollution events more visible," said De Leon.
Understanding light pollution
We have long known that our obsession with lighting the night sky obscures the stars and confuses terrestrial animals, but what impact does it have on the sea?
To understand that, scientists need satellite images to show how light spreads from coastal megacities, as well as complex models that can calculate how light penetrates the ocean, said Tim Smyth, a marine biogeochemistry specialist at Britain's Plymouth Marine Laboratory.
Seawater generally absorbs more red light, but that can change in the presence of phytoplankton or high turbidity.
"We're able to program computers such that we can model the light field under the water with a high degree of accuracy," said Smyth.
His research found two million square kilometers (770,000 square miles) of ocean -- an area 10 times the size of Britain -- is affected by light pollution globally.
The effects are profound, from disrupting feeding by fish and seabirds, to interfering with coral spawning and the nightly migrations of phytoplankton up and down the water column.
The good news is "it's something we can do something about", said Smyth.
Switching off unnecessary illuminations such as billboards and redesigning lights to reduce "spillage" into the sky will bring down costs and carbon emissions while benefiting wildlife on land and in the sea, he explained.
Species discovery
Advances in technology have allowed us to reach the ocean's darkest depths but scientists estimate we know about just 10 percent of what lives in our seas.
And before we even realize a new species exists, "we are losing that diversity", said Lucy Woodall, a marine biologist and head of science at Ocean Census.
Launched in 2023, the global alliance of scientists aims to speed up the discovery of ocean species from coral to crabs.
That works in part by collaborating with high-tech, lab-equipped research vessels where researchers can immediately start work on collected specimens.
Genetic sequencing can now be done in the field, "which even 10 years ago would have been months and months worth of work back on land", said Woodall.
On average, it takes more than 13 years from finding a possible new species to officially describing it for science.
"We can't afford to wait for that," said Woodall.
The project encourages scientists to share findings sooner, with an explanation of why they believe a species is new.
It won't replace the slower work of proving new species with methods such as genetic testing but it can accelerate knowledge at a time of urgency.
The project has documented more than 800 new discoveries, which are shared on its open-access biodiversity platform.
"We want to ensure that companies, countries, and individuals really value the ocean and ocean life for what it does for them and our planet," said Woodall.