Millions of tiny sea butterflies have made a brief appearance. These creatures are actually tiny, free-swimming marine snails. They are given their name due to their wing-like swimming appendages, which give them a butterfly-like appearance.
The name is a reference to their unique swimming style, made possible by these appendages. Further information about this phenomenon is available from the source. Details about the duration and specifics of the visit are not provided here, but more information can be found through the original source.
