Story perspectives

Study Reveals Coral Emits Green Light to Attract Predators

4/17/2026

Summary

Story summary

The study published in Royal Society Open Science reports that Corallizoanthus aureus emits green light at about 515 nanometers when stimulated mechanically or chemically, not spontaneously.
Researchers ruled out common bioluminescence sources and indicate an intrinsic biochemical pathway likely involving coelenterazine.
The findings support the burglar alarm hypothesis, implying the light attracts larger predators.
Further field observations near Minamidaito Island, Japan, are needed to confirm predator interactions.

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Story summary

The study published in Royal Society Open Science reports that Corallizoanthus aureus emits green light at about 515 nanometers when stimulated mechanically or chemically, not spontaneously.
Researchers ruled out common bioluminescence sources and indicate an intrinsic biochemical pathway likely involving coelenterazine.
The findings support the burglar alarm hypothesis, implying the light attracts larger predators.
Further field observations near Minamidaito Island, Japan, are needed to confirm predator interactions.