Researchers tested whether mushroom fungi can remember where they found food by exposing fungal cultures to pea nutrients and then transferring them to fresh medium to see if they would grow toward where the food had been. The fungi did not show this memory behavior, but the study revealed that chemical compounds from the peas influenced fungal growth patterns. This work provides valuable tools and insights for studying how fungi perceive and respond to their environment, emphasizing the importance of publishing negative results to advance scientific understanding.