There are reports that several Nile crocodiles (Crocodylus niloticus) have been captured in the wilds of Florida (www.theguardian,com/us-news/2016/may/21/african-nile-crocodiles-captured-florida). Unlike the native alligators, these faster-growing (up to 5.5 m) reptiles, are people-eaters (they may thrive also on the native alligators, birds, mammals and companion animals of that state). Nobody is entirely sure how they got to the Florida swamps (they do not appear to be genetically linked to members of this species in US zoos) but scientists believe that they might be former 'pet' animals that proved too large and voracious for their owners. Florida, apparently, has the highest proportion of introduced species in the US. Be careful what you let out!
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