white muscle
white muscle A type of muscle tissue found in fish and consisting of fast-twitch muscle fibres specialized for rapid contraction. White muscles are used for fast swimming movements and for escape reactions. They lie deeper in the body than the red muscles used for slow swimming and are arranged in a helical pattern rather than parallel with the body axis. This arrangement produces marked body curvature when they contract.
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Beluga (whale) , white whale
white whale
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white muscle