This year, both the 13-year and the 17-year cicadas will emerge, arriving in numbers that have not been seen in generations, bringing with them their loud buzzing and molted exoskeletons.

Game theory is a branch of mathematics concerned with the analysis of conflict situations. It involves the determination of a strategy for a given situation and an analysis of the costs and benefits associated with that strategy.

Honeybees live in large "families" and are found all over the world. They are the only social insect whose colony can survive many years because they huddle together and eat honey to keep themselves alive during the winter months. Honeybees are very important and need to be protected; they pollinate more than 80٪ of the world's plants.