Bizarre-looking blue blob creatures are once again washing up on California’s beaches, but scientists have said they are usually harmless to humans.
The blobs are known as velella velella, or “by-the-wind sailors.” According to UC San Diego’s Scripps Institution of Oceanography, they have been in the scientific record since 1758. They also tend to wash onto the coasts of Oregon and Washington.
They have an appearance similar to jellyfish but are a different species. They get their name because of the sail-like features on their body.
According to UC San Diego researchers, they are moved by water currents and wind, causing them to wash onshore.
“They have a pretty complex life history. There are additional stages where they will reside in the deep sea during the wintertime. Then, when conditions are such that they support a lot of zooplankton activity, like we see here in the spring, they transition to …