Did you know the longest fences in the world are in Australia? It’s true!

en.wikipedia.org/wiki/Dingo_Fence

The Dingo Fence or Dog Fence is a pest-exclusion fence in Australia to keep dingoes out of the relatively fertile south-east part of the continent (where they have largely been exterminated) and protect the sheep flocks of southern Queensland.

One of the longest structures in the world, it stretches 5,614 kilometres (3,488 mi) from Jimbour on the Darling Downs near Dalby, through thousands of kilometres of arid land, ending west of Eyre peninsula on cliffs of the Nullarbor Plain above the Great Australian Bight near Nundroo.

It has been partly successful, though dingoes can still be found in parts of the southern states. Although the fence has helped reduce losses of sheep to predators, this has been countered by holes in fences found in the 1990s through which dingo offspring have passed and by increased pasture competition from rabbits and kangaroos.

en.wikipedia.org/wiki/Rabbit-proof_fence

The State Barrier Fence, formerly known as the Rabbit-Proof Fence, the State Vermin Barrier Fence, and the Emu Fence, is a series of pest-exclusion fences originally constructed between 1902 and 1907 to keep rabbits and other agricultural pests from entering Western Australia from the east.

There are three fences in Western Australia: the original No. 1 Fence crosses the state from north to south, No. 2 Fence is smaller and further west, and No. 3 Fence is smaller still and runs east–west. The fences took six years to build. When completed, the rabbit-proof fence (including all three fences) stretched 3,256 kilometres (2,023 mi). The cost to build each kilometre of fence at the time was about $250 (equivalent to $42,000 in 2022).

When it was completed in 1907, the 1,833-kilometre (1,139 mi) No. 1 Fence was the longest unbroken fence in the world.