The wildfires in Australia have burned through more than 38,000 square miles, killing hundreds of millions of animals in the path of the blazes and devastating significant swaths of crucial habitat for the survivors.

Numerous animals in the hardest-hit states of New South Wales, Victoria and South Australia face real threats to extinction as they struggle to recover from the destructive fires.

The federal government has committed $50 million to a wildlife recovery fund. Treasurer Josh Frydenberg announced half this sum would go to wildlife rescues, hospitals and conservation groups, and the other $25 million would go to an emergency intervention fund advised by a panel of experts.

Ecology expert Chris Dickman from the University of Sydney conservatively estimates more than 1 billion animals may have perished across the country, based on mammal, bird and reptile population density estimates multiplied by the area burned.

According to a draft of the Victorian state governments bushfire biodiversity response plan obtained by HuffPost, the blazes in the state had burned through mostly high biodiversity value areas. The report listed 54 species for immediate concern based on the extent of habitat burned, with numerous species having lost more than 40% of their habitat and some projected to lose more than 70%. Among the 54 species are 13 amphibians, 2 bats, 8 mammals, 11 birds, 7 reptiles and 13 aquatic fauna.

In New South Wales, a spokesperson for the state environment minister, Matt Kean, confirmed there was a similar response plan in the works but said it was not yet available to share.

Heres a snapshot of the species facing serious threat from the fires.

Brush-tailed rock-wallaby