Slime molds, despite being single-celled organisms without brains, exhibit remarkable abilities that have intrigued scientists. These organisms demonstrate intelligent behavior, such as solving mazes by finding the shortest path between food sources, mimicking efficient transportation networks similar to those in Tokyo, and adapting to environmental changes by altering their form. They can remember and predict periodic changes in their environment, showcasing a form of memory and learning. When faced with scarcity, slime molds release a substance called cAMP, coordinating collective behavior akin to a wave in a stadium. Their unique capabilities have significant scientific value, shedding light on the nature of intelligence and biological algorithms, and have been recognized in fields beyond biology, including mathematics and physics. Professor Toshiyuki Nakagaki, a leading researcher in this area, has been awarded the Ig Nobel Prize twice for his innovative work on slime molds' maze-solving and network design abilities. His research continues to explore the information processing mechanisms of these fascinating organisms, offering new insights into the origins of intelligence.