As readers of this blog will be aware, the presence of Alien Big Cats, mostly black, is no longer confined to the southern states of Australia, but is fully established in southeast Queensland. (If you are new to the site, you may care to check my posts of June and December 2013, and January and April of this year.) I would like to be able to say that this disastrous spread of a mysterious invasive species is limited to the southeast, but that would be false. They are well and truly established in north Queensland, more than 1,200 km away. Let us have a look at a few cases.