An anonymous reader writes: Why do cicadas operate on 13 and 17 year cycles? Why do they come out all at once? This blog delves into the answers.
DEAL: For $25 - Add A Second Phone Number To Your Smartphone for life! Use promo code SLASHDOT25. Also, Slashdot's now on IFTTT. Check it out! Check out the new SourceForge HTML5 Internet speed test! ×