Plural of beluga, which refers to a large white whale found in Arctic waters, or sometimes to beluga caviar.
From Russian 'белуга' (beluga), possibly derived from Turkic languages. Originally referred to a species of sturgeon fish before being applied to the white whale.
Belugas are called 'canaries of the sea' because they make incredible vocalizations—they're the only whales that can change their facial expressions, creating a unique 'melon' that focuses their echolocation clicks.
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