Deep Sea Profile
Blade-like fish using counter-illumination (belly lights) to hide from predators.
Frequently Asked Questions
Why the lights?
It helps them blend in with light from above to hide their silhouette.
Sternoptychidae

Image via Wikimedia Commons
200–1,500 m (600–5,000 ft)
3–12 cm (1–5 in)
Midwater
Plankton and tiny crustaceans
"I have a very thin, blade-like body that helps me disappear when viewed from the side."
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Start QuizBlade-like fish using counter-illumination (belly lights) to hide from predators.
It helps them blend in with light from above to hide their silhouette.