A genus of small deep-sea fish with silvery coloring and special light-producing organs, known for their ability to produce bioluminescence.
From Greek 'argyro-' meaning 'silver' and 'pelekus' meaning 'axe' or 'hatchet,' referring to the fish's silvery hatchet-shaped body.
These incredible fish use mirror-like organs to avoid detection by predators below them—they match the light filtering down from above so perfectly that nothing can see their shadow!
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