A deep-sea alarmSourced
A flash may bring in a larger predator
The deep-sea jellyfish Atolla wyvillei flashes when attacked. This display is thought to work like a burglar alarm, attracting a larger predator that might attack the jellyfish’s assailant.
Its light may change who is chasing whom.
Summary / translation: Unbubly · CC BY-SA 4.0
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Atolla jellyfish · Wikimedia contributors
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Reviewed: 2026-10-10