Thousands of mysterious jellyfish-like creatures wash up on California shores

Southern California beachgoers may notice a plethora of jellyfish-like creatures washed up on local shores – but sea jellies these blue blobs are not.

Thousands of Velella velellas, or by-the-wind sailors, have recently emerged on Golden State beaches from San Diego to Marin County. Pictures taken on April 28 in San Clemente show thousands of gelatinous hydrozoans strewn across a single beach.

Point Reyes National Seashore, a National Park Service (NPS) preserve located in the Bay Area...