Unusual venom potency: Chironex fleckeri, known as the Australian box jellyfish or “sea wasp,” is often labelled the most ...

It’s one thing to experience the burn of a jellyfish sting, but how about a dose of psychological torture to go along with ...

Among the small, tight-knit community of jellyfish scientists, the question of whether our oceans really are becoming a jelly-filled ooze is hotly debated.

They're difficult to see, and their 10-foot long barbed tentacles contain venom that's so lethal it's considered to be one of the deadliest creatures on Earth. What is a box jellyfish? What part ...

Jellyfish populations tend to wax and wane as conditions and their food supply does. In many species, this oscillation occurs in a 20-or-so-year cycle. “It’s pretty clear that there are ...

That's not typical of a box jellyfish and is likely an injury from the fish trying to get out. Kent agreed. "It's probably not going to end well for the jelly," he said.

Saxon Thomas was nine when he spotted a small, box-like jellyfish while fishing with a friend in 2013. Thinking it unusual, he removed it from the water with a net, and with help of his father ...

More beachgoers have been getting an unexpected shock this summer as jellyfish numbers bloom along the Delaware coast, ...

As night falls in the open ocean, these fish sense danger lurking nearby. To avoid predators, they make an unexpected ally in a jellyfish, swimming right beneath its protective tentacles. The ...