A new study found that Europe's biggest snake, the Aesculapian snake, has established a healthy population in parts of North Wales after two 'accidental' introductions.
Researchers placed radio trackers on 21 Aesculapian snakes in Colwyn Bay, Wales, and tracked them over two summers.
Professor Wolfgang Wüster, a snake scientist from Bangor University and co-author of the study, told MailOnline: 'Any dog, even the smallest, could easily kill an Aesculapian snake, and rabbits are much too big to serve as prey.
Urgent warning to Britons as 6.5ft-long SNAKES invade the UK following two 'accidental' introductions If you have a fear of snakes, make sure you're extra careful next time you head up to the attic.
In a study, published in PLOS One, Dr Tom Major and his co-authors caught 21 Aesculapian snakes and fitted them with radio trackers before putting them back where they found them.
