 Before the fires, only 500 tiny Kangaroo Island dunnarts ("Sminthopsis aitkeni") lived on one island; after half the island was burned, it is possible only one has survived.Bramble Cay melomys ("Melomys rubicola") became the first known casualty of human-caused climate change in 2015 due to rising sea levels and repeated storm surges; the greater stick-nest rat ("Leporillus conditor") may be next.Emus ("Dromaius novaehollandiae") are not in danger of extinction, although they might be wiped out in Australia.