N. gardneri mushrooms grow at the base of young babassu palms in Brazil. A bland tan by day, the fungi emit an eerie green light by night. Michele P. Verderane/IP-USP hide caption

itoggle caption Michele P. Verderane/IP-USP

Histoplasma capsulatum is common in soil in the Midwest and Mid-Atlantic. So how did it get a rancher in Montana sick? CDC hide caption

itoggle caption CDC

Fungi (cyan) surround a human hair within the skin. A study in the journal Nature shows the population of fungi on human skin is more diverse that previously thought. Alex Valm, Ph.D. hide caption

itoggle caption Alex Valm, Ph.D.