Dingo Fence

The great Australian Dingo fence or known to some as the Canis familiaris-exclusion fence. Is a great achievement in engineering that ranks up there as one of the longest structures in world. Its main use is to keep out dingos from the southern parts of Queensland allowing sheep to roam freely in the outback without fear of becoming lunch.

Built in 1880s it was most effective at keeping out rabbits and small animals. Consequently there was an overpopulation of rabbits in one area without any predators. The fence was later reinforced in 1914 to protect against intruding dogs, once in for all keeping the food chain under control. (except for Koala's because they can climb over and frogs because they can hitch rides on vultures) There have been books and award winning movies based on the stories that involve the hardships of this fence, all of which information can be found here. Wiki Dingo Fence