Extinction of Australian Megafauna

Throughout time Australia has withstood the many climatic and geological changes that have affected it's vegetation and native fauna.
Australia has been isolated from other continents for 45 million years. This isolation resulted in many unique plants and animals evolving. Over this time Australia has changed from a green, forested land to one of the most arid vegetated landmasses on Earth. This change of climate is reflected in the fossil record.
Fossil plants show that at the time Australia separated from Antarctica, much of the land was covered with broad-leaved forests, even Central Au…