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 ...

You’re blissfully splashing in the ocean and feel a pinch. Or you’re strolling along the beach and step on something sharp. When you’re out at the beach, it’s important to remember that you’re sharing ...

A new species of venomous Portuguese man-of-war, Physalia mikazuki, has been discovered in northern Japan. Genetic evidence ...