Sarah G. gets a breezy no-prize for bringing this older Guardian story about what some European researchers discovered sticking to the back of their air-scoop sampler:

On Mediterranean shores, there's always something in the air. Romance, perhaps? Well, research shows that sometimes it's just marijuana pollen wafting in from Africa. And sometimes, it's snails.

Amazing what you can figure out just by using what is essentially a simplified giant nose.