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

The Portuguese man-of-war, or Physalia, is a jelly-like creature that uses a special gas-filled balloon to float on the sea ...

The Box Jellyfish is one of the deadliest creatures on Earth, capable of killing a human in just minutes with its powerful ...

Nature's deadliest creatures employ distinct defense mechanisms. Venomous animals inject toxins through bites or stings, like cobras and jellyfish. Po ...

A student-led research group from Tohoku University has discovered a new species of the venomous Physalia (commonly known as Portuguese man-of-war) that has never been seen before in northeast Japan.

A dangerous jellyfish has been spotted on the beach, a single sting from which can be fatal. Where was this jellyfish found?

Here are the U.S. beaches with the most jellyfish stings, plus which species are common, and expert tips on how to avoid and ...

Dangerous Portuguese Man O' War have washed ashore on popular Welsh beaches. Authorities are warning the public to avoid contact with these venomous creatures. Even dead specimens retain their sting.

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.

If you’ve spotted a big, blue jellyfish on your beach walk recently, it likely wasn’t a jellyfish at all. Beachgoers around north Florida reported seeing Portuguese men o’ war washed up on the sand ...

In fact, urine has no effect on the venom because it dilutes and spreads the stinging cells still on your skin, said Philip Swart, the medical director at Altezza Travel, a tour operator in Tanzania.