Biology Experiments

As a bachelor I can appreciate unplanned biology experiments.  Occasionally it happens.  My work space in the office, however, is the last place I would allow for inadvertent mold growth.

A married colleague of mine, though, recently allowed  for such growth to occur in his coffee cup. 

Another coworker and I noticed that he hadn't used his coffee cup in awhile, instead has been using the paper cups in the coffee bar.  I just so happened to pick up his cup this morning and noticed the growth inside.  Since he's working out of another office today, we decided to send him an email with one of the photos titled "Mystery" to see if he could guess what the photo is of.

Here are some additional photos: