"By-the-Wind Sailors" wash ashore in Ventura, causing a colorful spectacle but prompting warnings against touching.

Thousands of blue blobs blanketed Southern California beaches after winds carried them ashore. Velella velellas, or ...

Stunning images captured the moment the sea lit up with vibrant bioluminescent plankton that is rarely seen in the UK. The stunning display of blue swirls and waves was seen yesterday evening at ...