Box jellyfish, Portuguese man-of-war, lion’s mane and sea nettle are among highly venomous jellyfish species whose stings require immediate medical attention, per UF Health. If you experience ...

The jellyfish are believed to black jellies, or Black Sea Nettles, based on the color of the sea animal. Their sting is painful but not lethal to humans, but the tentacles may break off if a ...

However, scientists have reported that using a heat pack or dunking the sting in water as hot as you can comfortably stand may actually be better. “It’s counterintuitive, but it can bring relief,” ...

known for their vibrant colors and painful sting, are washing up on Texas beaches.(Harte Research Institute for Gulf of Mexico Studies) Hordes of highly venomous sea creatures are washing up on ...