The other day, I went out to clean out the trash bags from the car, and I found a ziplock bag with a few plum pits in it. Inside the bag were 2 (ONLY 2) fruit flies. I quickly zipped it closed and thought, "This will make a cool experiment!"
I wrote up this little paper--how fast do fruit flies multiply? and then pinned the bag to the cork board to await the results.
Whoa. It was definitely cooler than any experiment that I've had planned before! Just goes to show that serendipity is by far one of the best teachers! :)