I drift through dark arenas, guiding without a steady source. What am I?
Category: Knowledge · Difficulty: hard
Hint: Look beneath ocean waves for natural light
Answer
Bioluminescent marine plankton
Explanation
Certain plankton emit light biologically, creating glowing effects in ocean waters without external light sources.
This is a hard knowledge riddle — a tricky one that takes a little thought. The answer is Bioluminescent marine plankton.
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