In Australia, the distances between cities are much further than they are in many other countries.  This helps to explain why standard gas tanks are often double the size they are in North America.  I was initially startled by the numbers of signs that appear along highways which say things like, "Power nap now!,"  "Pull over for a snooze," and "15 minutes could save your life."

I friend of mine was driving along Victorian country roads in the early morning rain. He drove for hours without passing any gas stations or homes.  He had only passed cattle and sheep farms.  At one point, he saw the biggest kangaroo he had ever seen coming toward him from the side. He slowed down to a crawl. The animal hopped across the road and continued out of sight. My friend believes that the size of the creature could have completely demolished his car and him. His advice is keep your eyes wide open, and even then roos will appear when you least expect it.

Wherever you are, driving is a privilege with unforeseen risks.  If you see animals and your speed doesn't permit you to stop, turning into a ditch would be less dangerous than a head-on collision.