Environment
A Puzzling 'Blackout' at Puerto Rico's Famous Bioluminescent Bay
Puerto Rico's popular tourist attraction has been unusually dim for over a week.
Bioluminescence, the neon-blueish glow produced by microscopic plankton when they sense movement, is one of the most magnificent natural phenomena. Unsurprisingly, the world's few remaining bioluminescent bays have become top tourist destinations. Kayak and boat tours allow visitors to streak the water and observe the magic glow.
But in Puerto Rico, one of these bio-bays has gone dark. And no one knows why.