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 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 ...

Every year, World Jellyfish Day celebrates one of the ocean’s most enigmatic creatures. Graceful yet dangerous, simple yet ...

A new species of venomous Portuguese man-of-war, Physalia mikazuki, has been discovered in northern Japan. Genetic evidence ...

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 ...