Namibia’s dry grasslands are dotted with round, grassless patches known as “fairy circles.” These circles are spaced out across the ground in a honeycomb pattern. For years, scientists have struggled to discover what causes them. Some scientists think the circles are caused by plants roots competing for water in the dry ground. Others believe termites cause them. A recent study suggests that plants and termites might work together to create this strange pattern. But many scientists are still unsure.