Termite Trails: Trail followed
What your termites should have done was to follow the lines that you drew with a Paper-mate or Bic ballpoint pen . . . pretty smart, aren't they?!
Actually, you have a secret that they haven't figured out yet! In the wild, termites leave a scent trail so that they can follow each other and find a good place to start a colony. The things that leave the scent trails are called pheromones. 
And in your pens is a smell that is similar to the termite's pheromones, so they actually think they are headed for their colony! Now how smart do you think they are?!
