Why some lingcod turn blue inside and out

This Fish Has a Serious Case of the Blues · 5:50 · Video: SciShow · Watch at the source

In short: While most lingcod are typically brown and white, some individuals develop a striking blue coloration. This video explores why these fish undergo such a dramatic shift in appearance.

Lingcod are generally characterized by brown and white coloring, but certain individuals can appear quite blue. This phenomenon is not merely limited to their external scales, as the color change can affect them internally as well.

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