Click Here to Read: Blue, mysterious and arriving by the millions: the alien-like creatures blanketing US beaches: Masses of ephemeral organisms known as ‘by-the-wind sailors’ wash up in a ‘blue tide’ on the west coast most years but warmer winter seas could be increasingly their numbers by Katharine Gammon on the Guardian Website on April 5, 2024.

Velella velella image: National Marine Sanctuaries.  Public Domain via Wikimedia Commons.