We are living in a world in which cows send texts to farmers when they’re in heat, where the most valuable real estate in New York City houses computers, not people, and some of humanity’s greatest works are created by crowds, not individuals. We are in the midst of a networking revolution–set to transform the way we access the world’s information and the way we connect with one another. Studying biological systems is perhaps the best way to understand such networks, and nature has a lesson for us if we care to listen: bigger is rarely better in the long run. The deadliest creature is the mosquito, not the lion.