A newly recognized psychedelic fungus has emerged from an unexpected place: cow dung. Its discovery prompts researchers to revisit what they know about the evolution and ecology of magic mushrooms—and how these fungi might thrive in surprising environments.

A new study has found that unsupervised use of psilocybin, known as “magic mushrooms,” is accelerating across all age groups in the United States. This surge is particularly notable among adolescents and individuals over 30, leading to an increase in poison control calls.