If you've been near the California coast recently, you might have seen beaches covered in thousands of strange, blue, jellyfish-like creatures. These 'By-the-Wind Sailors' aren't jellyfish at all, and their mass appearances reveal a lot about our oceans.
By-the-Wind Sailors are washing ashore in huge numbers along the California coast, making headlines and sparking curiosity.
Recent reports from areas like Orange County and San Diego have shown beaches blanketed with these blue organisms.