Devastating images of burned koalas and wallabies are emerging from Australia as 1 billion animals are feared dead

australia fires injured koala
australia fires injured koala

Lisa Maree Williams/Getty Images

This week, the estimated number of animals feared dead in Australia's devastating bushfires soared to more than 1 billion.

As the country enters its third year of an unprecedented drought, blazes have burned an estimated 25 million acres — 46% more than the total that burned in the Brazilian Amazon last year. Australia's dry season still has another two months to go.

Despite rescue efforts, tens of thousands of koalas are estimated to have died on one island alone. Ecologists fear the fires could wipe endangered species off the map.

Disturbing images from the fires' aftermath are beginning to emerge.

Warning: This post contains graphic images of dead animals.

Unprecedented, deadly bushfires have raged across Australia since September.

australia bushfires bateman bay
australia bushfires bateman bay

Copernicus EMS

Hundreds of thousands of people have been forced to evacuate, and at least 25 have died. An estimated 2,000 homes have been destroyed.

The fires have razed an estimated 25 million acres across the continent.

australia fires compared to other major fires
australia fires compared to other major fires

Shayanne Gal/Insider

That's an area larger than South Korea and 46% bigger than that which burned in the Brazilian Amazon last year.

In some areas the fires are so large they've created their own weather.

fire
fire

Bureau of Meteorology, Victoria

The smoke generates clouds that create thunderstorms, ultimately leading to more fires.

Despite rescue and treatment efforts, 1 billion animals are feared dead amid the blazes.

Bushfire animals 1.JPG
Bushfire animals 1.JPG

Jill Gralow / Reuters

Warning: The following images contain graphic content.

Last week, ecologists estimated that 480 million mammals, birds, and reptiles had died in the fires. But on Monday that number skyrocketed.

GettyImages 1198148571
GettyImages 1198148571

Lisa Maree Williams/Getty Images

Chris Dickman, an ecologist at the University of Sydney, told HuffPost that last week's estimate was conservative and considered only the state of New South Wales.

"Over a billion would be a very conservative figure," Dickman told HuffPost.

australia fires dead bird animals
australia fires dead bird animals

Tracey Nearmy/Reuters

Dickman said researchers didn't have population data for animals like bats, frogs, and invertebrates, making it difficult to know how many had died.

The fires could wipe out some endangered species, including the southern corroboree frog and the mountain pygmy-possum.

mountain pygmy possum
mountain pygmy possum

Photo by Rick Stevens/The Sydney Morning Herald/Fairfax Media via Getty Images via Getty ImagesThe fires have burned one-third of Kangaroo Island, known for its nature preserves and endangered bird species.

Kangaroo Island
Kangaroo Island

Sinéad Baker/Business InsiderEcologists estimate that 25,000 koalas have died in the island's Flinders Chase National Park.

australia fires dead koala animal
australia fires dead koala animal

Lisa Maree Williams/Getty Images

That's half of the park's koala population.

Koalas can't move fast enough to escape the fires, the ecologist Mark Graham told Parliament in December. Koalas also eat leaves from eucalyptus trees, which are highly flammable.

"The fires have burned so hot and so fast that there has been significant mortality of animals in the trees, but there is such a big area now that is still on fire and still burning that we will probably never find the bodies," Graham said, according to The Guardian.

Each day Australians have brought about 30 injured koalas to the Kangaroo Wildlife Park, at the edge of the island's fire zone.

Adelaide wildlife rescuer Simon Adamczyk is seen with a koala rescued at a burning forest near Cape Borda on Kangaroo Island.JPG
Adelaide wildlife rescuer Simon Adamczyk is seen with a koala rescued at a burning forest near Cape Borda on Kangaroo Island.JPG

AAP Image/David Mariuz/via REUTERS"At least a third of what has been brought in we've had to euthanize unfortunately," Sam Mitchell, a co-owner of the park, told The Guardian.

australia fires dead animals kangaroo koala
australia fires dead animals kangaroo koala

Lisa Maree Williams/Getty Images

He said residents had also brought in kangaroos, wallabies, and pygmy possums.

"We are seeing many burns to hands and feet – fingernails melted off," Mitchell said. "For some the burns are just too extreme."

australia fires koala burns animals
australia fires koala burns animals

Nathan Edwards/Getty ImagesRescuers fear many animals simply can't escape the fires.

australia fire dead wallaby animals
australia fire dead wallaby animals

Brett Hemmings/Getty Images

"We're not getting that many animals coming into care," Tracy Burgess, a volunteer at Wildlife Information, Rescue, and Education Services, told Reuters. "Our concern is that they don't come into care because they're not there anymore, basically."

On Thursday, Mitchell and some staff members of the Kangaroo Island Wildlife Park said they were going to stay despite the threat of fires on the island.

kangaroo island
kangaroo island

Google

According to 7 News, they are staying to protect the roughly 700 animals in their care.

The nearby town of Parndana was evacuated by the Country Fire Service and the Australian Defence Force.

For those looking to donate to organizations assisting with relief efforts in Australia, here are some to consider.

In this image made from video taken on Dec. 22, 2019, and provided by Oakbank Balhannah CFS, a koala drinks water from a bottle given by a firefighter in Cudlee Creek, South Australia.
In this image made from video taken on Dec. 22, 2019, and provided by Oakbank Balhannah CFS, a koala drinks water from a bottle given by a firefighter in Cudlee Creek, South Australia.

Oakbank Balhannah CFS via AP

To help animals (and the humans caring for them):

World Wildlife Fund Australia hopes to raise $30 million Australian dollars (about $20 million US) for an Australian Wildlife and Nature Recovery Fund.

The New South Wales Wildlife Information, Rescue, and Education Service (WIRES) rescues and cares for animals. The group is seeking donations for volunteer carers and rescuers.

The Port Macquarie Koala Hospital has a GoFundMe page that seeks funding for recovery work to help koalas affected by the bushfires.

Other organizations include:

Australian Red Cross

Salvation Army

St Vincent de Paul Society

New South Wales Rural Fire Service

Country Fire Authority (CFA), Victoria

The Victorian Bushfire Appeal

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