Photo Journal: Fantastic fireflies

Visitors admire the stunning blue glow emitted from a group of sea fireflies at the Ama Kaigan beach in the city of Minamiawaji in Hyogo Prefecture, during a mid-April evening. The viewing session was part of a sea firefly observation event in the Hyogo city that will run until mid-July. The fireflies are nocturnal crustaceans that are approximately 3 millimeters long. They emit a blue glow upon physical stimulation. For further inquiries about the observation event, contact the Minamiawaji tourism information center (in Japanese) on 0799-52-2336. (Mainichi)