The invertebrate is so popular, there's an entire day dedicated to raising awareness about jellyfish on November 3, fittingly called World Jellyfish Day. In honor of the holiday, here are 25 ...

Jellyfish and other gelatinous zooplankton are present throughout the world’s oceans, with the greatest concentrations in the mid-latitudes of the northern hemisphere, showed the scientists who ...

In recent decades jellyfish populations in some parts of the world have boomed ... walnuts eat as much as 10 times their body weight a day—and many fish became food for the jellies.

the jellies reverse course and return to the western shore to await the dawning of a new day. This remarkable migration pattern has a crucial consequence: The jellyfish avoid the shaded lakeshore ...