While jellyfish stings are seldom life-threatening, they can be a very unpleasant experience. Stings can cause pain, swelling, and in rare cases, serious reactions like breathing trouble. Treat stings ...

The tentacles of the Portuguese man o' war, (which is technically a siphonophore, a group related to jellyfish), contain harpoon-like cells called nematocysts that deliver painful doses of venom.

While swarm of jellies may look serene, you're best off keeping your distance. A sting from the most dangerous jellyfish on Earth can be deadly. Even when we're not looking at the most dangerous, many ...

Most of us associate beach holidays with sun, sand, and snacks, not medical emergencies. But for one unsuspecting nine-year-old on a family getaway to Goa, her vacation took a dangerous turn to an ...