Question: are these the worst fires ever in australia?
Answer: Other major conflagrations include the 1851 Black Thursday bushfires, the 2006 December bushfires, the 1974–75 fires that affected 15% of Australia, and the ongoing 2019–20 bushfires. In January 2020, it was estimated that over 1.25 billion animals have died in the 2019–2020 Australian bushfire season.