One of the most remarkable parts of their story is how they travel. Because they are often less than half an inch long, crossing a forest floor is like trekking across a continent. To move to better hunting grounds, they engage in —the art of hitchhiking.

: While they get a free ride, they often help their host by eating parasites like mites along the way. The "Book Scorpion" Legend

: They hold on tight as their host takes flight, sometimes even riding in groups. This allows them to find new homes, such as decaying logs, which would be impossible to reach on their own.

In the microscopic world under a loose patch of bark or between the pages of an old book, there lives a tiny hunter known as the (or pseudoscorpion ) . Though they look like miniature versions of their famous namesakes, they carry no stinger and are entirely harmless to humans. The Life of a Tiny Hitchhiker

: A pseudoscorpion will use its powerful pincers to grab onto the leg or wing of a larger insect, like a harlequin beetle , or even hide under the fur of a mouse.

Pseudoscorpions have a long history with humans, first described by the Greek philosopher . He likely found them wandering through ancient scrolls in libraries.