🌊Sea slug
Cute little marine friends under the sea~🎵
Sea slug is a common name for some marine invertebrates
with varying levels of resemblance to terrestrial slugs. Most creatures
known as sea slugs are gastropods, i.e. they are sea snails (marine
gastropod mollusks) that over evolutionary time have either completely
lost their shells, or have seemingly lost their shells due to having a
greatly reduced or internal shell. The name "sea slug" is most often
applied to nudibranchs, as well as to a paraphyletic set of other marine
gastropods without obvious shells.
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