A small colorful fish found in northern Atlantic waters, related to the wrasse family, with distinctive markings.
From Scandinavian or Old Norse origins, possibly related to Old Norse 'berg' (rock/mountain) referring to the rocky habitats where these fish live, plus a suffix indicating a type of fish.
The bergylt is brilliantly colored to warn predators of its toxicity—it's a perfect example of how even tiny fish evolved elaborate warning systems that eventually made naturalists realize not all bright colors mean 'pretty and harmless.'
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