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

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Why Some Mushrooms Glow In The Dark

Scientists outfitted some fake fungi with LEDs and put them in a Brazilian forest to test their theory that light, not some funky mushroom fragrance, was luring bugs.

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This grocery store packet of porcini mushrooms contained a surprise: three species of fungi never before named or described. Bryn Dentinger/Royal Botanical Gardens, Kew hide caption

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Hank Shaw, author of Hunt, Gather, Cook, snaps the end off a mushroom in a Washington, D.C.-area park. When broken, the inside turns blue, identifying it as an inedible species of bolete. The Washington Post/Getty Images hide caption

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Richard Blais' Earth & Turf Burger, served at the Flip Burger Boutique in Atlanta, is 50 percent beef, 50 percent mushroom. Courtesy of Flip Burger Boutique hide caption

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Four hundred million pounds of mushrooms come from farms in Chester County, Pa. Eliza Barclay/NPR hide caption

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