Learn how the comb jelly is taking over the Mediterranean, threatening local marine life and expected to only worsen with a changing climate.

An Atlantic comb jelly known as the "sea walnut" has the ability to reverse its own aging process, a new study suggests. When food is scarce or the sea creature is injured, the gelatinous invertebrate ...

The jellies appear to combine their stomachs and nervous systems in a form of fusion not seen in any other species. Share on Facebook (opens in a new window) Share on X (opens in a new window) Share ...

The sea walnut, a type of comb jelly that has become invasive in parts of Europe and Asia, can transform from a sexually mature adult back into its larval form when times are tough. When you purchase ...