In 1992 a diving team exploring the Silfra fissure in Iceland stumbled upon the ‘Dancing Lights’ a remarkable phenomenon where huge swarms of tiny organisms resembling tiny underwater fireflies glow in an organized fashion across the seabed seemingly pulsing and undulating in unison Scientists have yet to decipher the cause of this synchronized bioluminescence.

Prompt:
Forget the usual animal or historical tidbits. What’s a bizarre, scientifically unexplained phenomenon discovered by accident? Maybe it’s a strange sound animals make for no reason, a weird optical illusion nature creates, or a plant that exhibits unexpected behavior. 🤯 Give me your most unusual accidental discovery fact!