Another invasive species is noted in the USA; one article suggests that a genetic group of these may be able to spread much farther north. The Nile Monitor Lizard is apparently a nuisance in Florida but could spread to much of the United States because a subset of the species is adapted to surviving in southern Africa and is able to hibernate in cold weather.
"Florida's Dragon Problem" by Ed Yong is an article in The Atlantic (April 20, 2016) that discusses the Nile Monitor Lizard [I]Varanus niloticus[I] in the USA. This invasive species joins he Burmese python and other invasive species as organisms that have been introduced and are able to rapidly expand their range. They may be impossible to eradicate.
www.theatlantic/science archive/2016/04/the-past-and-future-of-florida
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