The translucent blobs, known as by-the-wind sailors (Velella velella), began ... Each creature, which can grow up to 4 inches (10 centimeters) long, is actually a colony of hundreds of smaller ...

Hordes of bright blue, jellyfish-like sea creatures are washing up on beaches across California. As of Monday, thousands of the critters — called velella velella or by-the-wind sailors — have been ...