Eclectic Perambulations in the Noosphere

Photograph by Paul A. Zahl
"The transparent shells of tiny Cypridina hilgendorfii, found in the coastal waters and sands of Japan, hold a creature that emits a luminous blue substance when disturbed. During World War II, the Japanese harvested these creatures for soldiers to use when reading maps and messages at night.
(Photo shot on assignment for "Nature's Night Lights—Probing the Secrets of Bioluminescence," July 1971, National Geographic magazine)"
Glow-in-the-dark Neonothopanus gardneri rediscovered after 170 years.
"In 1840, English botanist George Gardner was traveling in Brazil. One night, he noticed some boys playing with a strange, glowing object. To his shock, he had encountered a bioluminescent mushroom. It's only taken 170 years to find some more. After Gardner sent a sample of the fungus to Kew Herbarium in England, it pretty much disappeared completely, and it's now thanks to biologists at San Francisco State that we've finally found some more."