> Remarkably, the longest fence in the world was built and is maintained for a single purpose: to protect Australia’s pastoral heartlands from the depredations of a canine.

I thought it was built to keep rabbits out?

https://en.wikipedia.org/wiki/Rabbit-proof_fence

Looks like that's a different, though equally impressive fence... https://en.wikipedia.org/wiki/Dingo_Fence

There's an amazing yet heart-breaking film by the same name.

that one line “he won’t come if you’re here”…

You are thinking of the Great Wall of China.

https://www.youtube.com/watch?v=D0KGvMgRE5k

The exclusion fence has unfortunately suffered extensive damage in the Western Queensland flooding this week, and will likely result in wild dog incursions in multiple places.

There is an excellent book about this. 'The New Wild' by Fred Pearce is well worth a read.

https://www.goodreads.com/book/show/22716462-the-new-wild

We shouldn't introduce species deliberately in new places, but in many places species have taken off and should be accepted.

To be honest, I don't think I buy this. I'm from NZ and we have a number of introduced species (possums, stoats) which have a dramatic impact on the native wildlife.

A lot of bird species in NZ are unique and only found here. They're almost all critically endangered or at risk [1], as they evolved with no natural predators.

I'd rather we try and control these introduced species so we can keep (at least some of) our native birds.

[1]: https://www.doc.govt.nz/nature/conservation-status/threatene...

Perhaps you should fight fire with fire - export NZ native wildlife around the world and hopefully it'll become invasive and flourish somewhere else! It worked well enough for Australia [1]!

[1] https://www.australiangeographic.com.au/topics/science-envir...

(I shouldn't need to say this, but this is a joke and should not be taken as environmental policy :) )

> this is a joke

it is reality in most.of the world. Humans turned the ecosystem in a world of invasive species.