Living With Roommates Is Sorely Underrated

In March, a group of U.K. biologists, zoologists, and chemical ecologists published the latest results of a long-term study on group living among wild great tits. (Yes: wild great tits—birds.) In the winter of 2018, they tracked 105 great tits at two sites in the Wytham Woods, curious to test whether these small birds’ social networks influenced what they ate. This turned out to be the case—the scientists found that when the tits had larger social networks and were embedded in more expansive communities...