Slime mold is better at making maps than you may think.
Computer scientists Andy Adamatzky and Selim Akl took a map of Canada and placed oat flakes (slime food) over major cities then dropped the slime on Toronto. The experiment yielded some interesting results.
Its path from city to city bears a striking resemblance to the country's existing highway system, which is captured in this time-lapse video from the experiment.
Organisms like slime mold make great computers because they can learn as they go along, opening up the possibility for other data processing and medical uses.