A mysterious froth has washed up South Australian beaches, raising serious concerns with surfers reportedly falling sick and fish dying in dozens, The Guardian reported.

The world's oceans are full of strange and fascinating creatures, many of which have never been seen by humans.

A popular surf beach in the country's south has been declared off-limits to the public as authorities investigate a ...

"This is Scripps Institution of Oceanography's Marine Vertebrate collection. When we say Marine Vertebrate, things with a ...

Marine scientists are calling for beachgoers who find weedy seadragons washed up on the shore to photograph them and send details to researchers at the University of Technology Sydney (UTS).

At the top of my list sits the leafy seadragon. Leafies are unquestionably one of the ocean’s most extraordinary creatures ... but the rest of their body looks more like a Chinese dragon. Related ...

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