About an hour outside Vienna, the Penny Markt in Krems an der Donau prides itself on two things: low, low prices, and the provenance of its meat and fresh produce. But one mild August day last year, shoppers rummaging for a locally-sourced bargain found a rather more exotic, if less welcome, surprise, lurking amid the banana crates.
The culprit was a stowaway Brazilian Wandering Spider, an…
