Found all over the world, from polar regions to tropical seas, sea angels are free-floating sea slugs with wing-like appendages called parapodia, and a gelatinous, mostly transparent body, stretching just 5 cm long. Becky Crew – Australian Geographic
Sea angels (clade Gymnosomata) are a large group of extremely small, swimming sea slugs, not to be confused with Cnidarians (Jellies and other similar creatures), classified into six different families. They are pelagic opisthobranchs in the clade Gymnosomata within the larger clade Heterobranchia. Sea angels were previously referred to as a type of pteropod.
Close to home, sea angels have been found all along the north-east coast of Australia and up around Papua New Guinea. The stunning specimen in the image above was spotted in the icy waters of the White Sea, off the northwest coast of Russia.
Sea angels are protandrous hermaphrodites, which means they start out male and turn female throughout the course of their lives. Clownfish are a great example of this type of hermaphroditism, which makes Finding Nemo a far more complicated scenario than the movie suggests.
O anjo do mar é um caracol antigo evoluído, descendente de um ancestral comum com todos os tipos de caracóis e lesmas encontrados aí mesmo no seu jardim.