Parts of Australia are littered with animal carcasses as wildfires continue to devastate the country, an animal charity has said.

“I can barely describe it,” says Evan Quartermain from Humane Society International. “In some places you can’t walk 10 metres without coming across another carcass.”

The charity has rescued animals on Kangaroo Island suffering from burns, smoke inhalation and mental trauma, as well as building food and water stations for unharmed animals.

The island – famous for its natural wildlife – is “utterly scorched with charred animal bodies everywhere”, according to the Humane Society International CEO.

“At one area, which was badly burned a week ago, the scenes were nothing short of apocalyptic,” Erica Martin said.

Animals rescued during Australia fires Show all 25 1 /25 Animals rescued during Australia fires Animals rescued during Australia fires Wildlife rescuer Simon Adamczyk is seen with a koala rescued at a burning forest near Cape Borda on Kangaroo Island, southwest of Adelaide AAP Image/Reuters Animals rescued during Australia fires Rural Fire Service volunteer firefighter Pat Smith pouring water onto a possum's feet with burns from fires on the outskirts of the town of Tumbarumba in New South Wales Greenpeace Australia-Pacific/AFP Animals rescued during Australia fires Wildlife Information, Rescue and Education volunteer and carer Tracy Dodd holds a kangaroo with burnt feet pads after being rescued from bushfires in Australia's Blue Mountains area Reuters Animals rescued during Australia fires Grey-headed Flying Fox bats prepared for a feeding at the Uralla, Australia, home of Jackie Maisey, a volunteer with Northern Tableands Wildlife Carers. The bats are swaddled in flannel wraps similar to those being made by thousands of crafters worldwide who are using their sewing, knitting and crocheting skills to make items for wildlife injured in the Australian brush fires Jackie Maisey/AP Animals rescued during Australia fires Sara Tilling takes care of a young injured Kangaroo which she and her partner Gary Henderson are nursing back to health in Cobargo EPA Animals rescued during Australia fires Humane Society International Crisis Response Specialist, Kelly Donithan holds a baby Koala she just rescued on Kangaroo Island AFP via Getty Images Animals rescued during Australia fires Tracy Burgess holds a severely burnt brushtail possum Reuters Animals rescued during Australia fires Fire-impacted, orphaned pouch-rescued Eastern Grey Kangaroo joeys are seen at the property of WIRES Carers Kevin and Lorita Clapson in East Lynne, South of Sydney EPA Animals rescued during Australia fires A koala receives water from a cyclist during a severe heatwave that hit the region, in Adelaide Instagram/BIKEBUG2019 via Reuters Animals rescued during Australia fires An orphaned Flying-Fox is fed at the property of WIRES Mid-South Coast Bat Coordinator, Janet Jones, in Tuross Head EPA Animals rescued during Australia fires Humane Society International Crisis Response Specialist, Kelly Donithan checks an injured Koala she had just rescued on Kangaroo Island AFP via Getty Animals rescued during Australia fires A wallabie eating a carrot dropped by the NSW National Parks and Wildlife services over the bushfire affected areas along the South Coast for wallabies NSW National Parks and Wildlife Services Animals rescued during Australia fires A dehydrated and injured Koala receives treatment at the Port Macquarie Koala Hospital AFP via Getty Animals rescued during Australia fires Gary Henderson holds the young injured kangaroo he and his partner are nursing back to health EPA Animals rescued during Australia fires A koala drinks water offered from a bottle by a firefighter during bushfires in Cudlee Creek, south Australia Oakbank Balhannah CFS via Reuters Animals rescued during Australia fires WIRES Mid South Coast wombat coordinator Tony De La Fosse with two orphaned pouch-rescued Wombats at his property in Malua Bay EPA Animals rescued during Australia fires Qantas, an orphaned Eastern Grey Kangaroo joey whose feet were burned in recent bushfires, is held by WIRES Carer Kevin Clapson at his property in East Lynne EPA Animals rescued during Australia fires Various completed animal pouches for animals affected by Australia bushfires hang on clothing racks in Regents Park, Queensland Kim Simeon via Reuters Animals rescued during Australia fires An orphaned pouch-rescued Eastern Grey Kangaroo joey hangs in a makeshift pouch at the property of WIRES EPA Animals rescued during Australia fires A rescued koala injured in a bushfire in Kangaroo Island, South Australia Kangaroo Island Wildlife Park/AP Animals rescued during Australia fires WIRES Mid-South Coast Bat Coordinator Janet Jones weighs a rescued Grey-Headed Flying-Fox at her home in Tuross Head EPA Animals rescued during Australia fires A weary kangaroo shelters on a patch of green grass surrounded by burnt bushland along the Princes Highway near in Milton Reuters Animals rescued during Australia fires Various animal wraps for bats affected by bushfires Simone Watts via Reuters Animals rescued during Australia fires A staff member moving a rescued koala to a temporary shelter at the Taronga Zoo in Sydney Taronga Zoo/AFP via Getty Animals rescued during Australia fires A kangaroo jumps in a field amidst smoke from a bushfire in Snowy Valley AFP via Getty Images

“There we only found one living koala amongst thousands of bodies of koalas, kangaroos, wallabies and birds.”

Conservationists have warned Australia’s worst ever wildfire season – which is expected to continue for several months – has already devastated the country’s wildlife.

Experts have estimated over one billion animals have been killed in blazes which have ravaged the country since September.

Some species may already gone extinct as a result of the wildfires, according to a leaked report.

Around 25,000 koalas on Kangaroo Island – half of its original population – are believed to have died, according to World Wildlife Fund for Nature (WWF).

As many as one third of Australia’s koalas may have been lost in the fires, the conservation group said.

WWF fears the disasters could lead to local extinctions and threaten the survival of some species, such as the glossy black-cockatoo and a knee-high kangaroo known as the long-footed potoroo.

Sussan Ley, the country’s environment minister, said there will be a review into whether certain koala populations now classify as “endangered”, according to Reuters.

The government has released $50m (£27m) fund for emergency wildlife and habitat recovery to support animal rescue and plan ahead to protect environments, the Department of the Environment and Energy has said.

Scientists have warned devastating bushfires could become “normal” if the threat of climate change is not adequately addressed.

So far, millions of acres of land has burned in the blazes raging through Australia, which have killed 28 people and torched thousands of homes.