The well-known Portuguese man o’ war — Physalia physalis — may look like a jellyfish, but it’s actually a siphonophore, or a ...

Genetic analysis reveals bluebottles are actually four distinct species, overturning two centuries of scientific belief.

While bluebottles are highly poisonous, understanding Portuguese Man O’ War biodiversity helps protect beachgoers and surfers ...

Long believed to be a single, globally distributed species drifting freely across the open ocean, the bluebottle—also known as the Portuguese man o' war—has now been revealed to be a group of ...

While certain jellyfish are more common, sometimes a stray shows up. For example, recently lion’s mane jellyfish, which pack ...

Rip currents pose the greatest threat to swimmers, but beachgoers should also be careful about wildlife and sun exposure.

New research study shows Portuguese man o’ war isn’t just one species but four, with genetic and physical differences despite their overlapping ranges globally.

Nothing ruins a nice seaside swim than someone shouting about something swimming in the crystal clear waters, right next to you. While most people might mistakenly call a Portuguese man o' war a ...

The Portuguese Man O’ War’s blue, alien-like appearance may invite a closer look. But beware! Their long, trailing tentacles pack a painful and sometimes dangerous sting. Often, they wash ashore, ...

New research study shows Portuguese man o’ war isn’t just one species but four, with genetic and physical differences despite their overlapping ranges globally.

Ocean drifters once thought identical are actually several species. Genetics and ocean modeling uncover unexpected isolation.