Sure! Isn't that true! We've never had such extreme weather events in the past. Throughout all the past civilizations of mankind, the climate has always been benign, until the industrial revolution took place and we started emitting CO2. Right? 
Ray, were it that normal in the past, no vegetation-dependent wildlife would have survived because left unchecked by man, the fires would have spread everywhere there was vegetation to burn. Maybe some ants, snakes, lizards and other hole-entering creatures could have survived, but even then, you can cook by placing a chicken in a hole and lighting a fire above it. Your nationally symbolic creatures would have sizzled in their holes, barbecued on branches and charred in the meadows.
Sure, settlers probably brought their own dogs now and again, but that would have been much later in history. Camels yes, but I'm sure they didn't think to ship in spare kangaroos and koalas from somewhere, let along eucalyptus trees.