Since the 1970s, Helsinki's Museum of Natural History has been home to a small population of the native South American Chilean recluse spider (Loxosceles laeta). While common is South America, the spiders inhabiting the museum are the only ones living free in this country, or indeed the whole of Europe.
While the origin of this population is not known, it is thought that they first arrived by hitching a ride from Chile in a packing crate. It is a very hardy species that can survive without food for months at a time.
Chilean recluse spiders are venomous and can be dangerous to humans, the effects of which can range from mild skin irritation to severe skin necrosis.
Chilean recluse spider are just that - reclusive, preferring dark, enclosed spaces, making them very difficult to find and even more difficult to photograph.
Yle's science programme Prisma Studio was, however, able to track one down in the depths of the museum's cellar and both photograph and video record this eight-legged squatter for its Wednesday evening edition.
The specimen trapped even ran up the bare arm of Prisma's production advisor.
"What a fine creature, completely different than Finnish spiders," says Samuli Siltanen, an amateur arachnid enthusiast. "It walks in a totally different way and it has six eyes, while ours have eight."
A video of the successful Chilean recluse spider hunt (in Finnish) can be seen here.