Every adaptation that Bathydevius has developed to live in the midnight zone, classified as the deep ... they need an advantage, like jellyfish with their stinging abilities, he said.

But the mystery mollusk is the first nudibranch known to live in the midnight zone, an expansive environment of open water 1,000 to 4,000 meters (3,300 to 13,100 ft) below the surface, also known ...

This remarkable migration pattern has a crucial consequence: The jellyfish avoid the shaded lakeshore areas where their primary predators, anemones, live. The daily migration also benefits the ...

The infamous box jellyfish developed its frighteningly powerful ... Box jellies, also called sea wasps and marine stingers, live primarily in coastal waters off Northern Australia and throughout ...