The sensation of hunger seems pretty simple on the surface, but behind the scenes, it involves complicated networks of sending and signaling, with multiple hormones that influence whether we decide to ...

Jellyfish have voracious appetites, and they aren’t considered the most selective eaters. Almost anything that gets stuck to their tentacles winds up in the gelatinous sack that they use to digest ...

This is a preview. Log in through your library . Abstract Jellyfish are ubiquitous predators in marine pelagic environments and can sometimes control their zooplankton prey populations. Recent ...

This story appears in the October 2018 issue of National Geographic magazine. Moon jellies, which are found in shallow bays around the world, look like small, not entirely friendly ghosts. They have ...

Normally, jellyfish are kept from getting close to the shore by a natural barrier of less-salty water formed with runoff from summer rains. But with rain more scant because of global warming, this ...

Every year, World Jellyfish Day celebrates one of the ocean’s most enigmatic creatures. Graceful yet dangerous, simple yet complex, jellyfish have floated through Earth’s waters for over 500 million ...

Unlucky divers and swimmers have experienced “stinging water,” a mysterious occurrence when people are stung when they get near, but don’t touch, Cassiopeia, a type of jellyfish that spends its time ...

Jellyfish have voracious appetites, and they aren't considered the most selective eaters. Almost anything that gets stuck to their tentacles winds up in the gelatinous sack that they use to digest ...