This was no ordinary expedition. It marked the first in-depth study of the geology, ocean conditions, and marine life beneath ...

Learn how the air-filled pneumatophore helps the Portuguese Man o’ War float and why it often ends up stranded on beaches.

And when that happens they get blown and then they get stranded," Bracken said. Velellas are related to sea anemones, corals, hydroids and jellyfish. But unlike the latter, they can't swim and don't ...

ianthina loves to feed on tiny predatory creatures called hydroids – jellyfish-like creatures that live in colonies and use stinging cells in their tentacles to capture even smaller prey. Nudibranchs, ...

Researchers witness gigantic iceberg A-84 breaking away from George VI, revealing an unknown ecosystem and giant phantom ...

Velellas are related to sea anemones, corals, hydroids and jellyfish. But unlike the latter, they can't swim and don't have enough propulsive ability to control their direction, Bracken said.

The By-the-Wind Sailors are also known as colonial hydroids, similar to Portuguese ... are known to feast on the little jellyfish-like creatures and were spotted chomping down on them in recent ...