The Basel show features all manner of weird and wonderful animals, from mammals to marsupials.
But it seems the one area everyone is drawn to this year is the reptiles house - which, this month, is the home of the world's most unusual snake, Mince.
This twin-credible freak of nature is an albino garter snake which boasts two heads - making it look even more intimidating than normal.
He is the only two-headed albino snake in the world, according to its owner Tom Beser, who also claims he could command offers well into five figures to buy the animal.
'There are eight of these two headed snakes in the world, albino and normal. But this is the only snake which is both two headed and albino,' he said.
'One collector was offered more than £13,000 for his two headed garter snake and his wasn't an albino.
'Mince would be worth much more.'