Returning to Nature

Is it the media? Or, are animals moving into man's life in a more direct way? I've been fascinated by the reporting of crocodiles and alligators in various parts of the country. This week it's snakes. In bucolic Cambridge this 4-foot boa constrictor turned up in someone's first floor apartment

And in the Big Apple this 3 foot corn snake was able to appear in a toilet on the 19th floor.