Glaucus atlanticus (common names include the blue sea dragon, sea swallow, blue angel, blue glaucus, dragon slug, blue dragon, blue sea slug, and blue ocean slug) is a species of sea slug in the family Glaucidae. These sea slugs live in the pelagic zone (open ocean), where they float upside-down by using the surface tension of the water to stay afloat.
Glaucus atlanticus (common names include the blue sea dragon, sea swallow, blue angel, blue glaucus, dragon slug, blue dragon, blue sea slug, and blue ocean slug) is a species of sea slug in the family Glaucidae. These sea slugs live in the pelagic zone (open ocean), where they float upside-down by using the surface tension of the water to stay afloat.
Source: Wikipedia "Glaucus atlanticus" · CC BY-SA 4.0
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