Humans aren't the only species that like to swim in warm, near-shore waters. Jellyfish are back at the Delaware beaches, ready to ruin a good dip with their stinging tentacles. Sea and bay nettles and ...

Add Yahoo as a preferred source to see more of our stories on Google. Tripedalia cystophora image shown. Tripedalia maipoensis and Tripedalia cystophora are very closely related box jellyfish within ...

They don’t have a brain, and yet they’re able to survive—to thrive—generation after generation.” Flower hat jellies exemplify ...

Scientists identified a new highly venomous box jellyfish species near Singapore. This new species, Chironex blakangmati, was ...

A research team has published a description of a rare medusa found at a depth of 812 meters. The animal has been sighted only twice in a deep-sea volcanic structure called Sumisu Caldera, in the ...

Jellyfish are visible in Delaware waters and beach patrol captains confirm stings are on the uptick. Here's what you'll see, ...

They washed up at high tide and people said there was nothing they could do to save them.

On a calm summer's morning in southern Australia, the water can look deceptively clear, until you see thousands of gelatinous shapes washing ashore. In January, thousands of pink lion's mane jellyfish ...

A family's trip to a pond in Star turned extraordinary when they discovered rare freshwater jellyfish. Though harmless to ...

For three summers in a row, researchers working in the Mai Po Nature Reserve noticed something unusual drifting through the brackish shrimp ponds. At first glance, the small, translucent animal looked ...