Box jellyfish are often feared as dangerous animals, with some species capable of causing severe or even fatal stings.

One of the biggest mysteries of evolution is how species first developed complex vision. Jellyfish are helping scientists solve this puzzle, as the group has independently evolved eyes at least nine ...

Jellyfish belong to medusozoans, or animals producing medusae, and include today's box jellies, hydroids, stalked jellyfish and true jellyfish. Medusozoans are part of one of the oldest groups of ...

The specimens are evidence of how little the squishy, tentacled predators have changed over the history of life on Earth. By Jack Tamisiea Jellyfish have been floating through Earth’s oceans seemingly ...

Jellyfish have repeatedly riddled the world of marine biology with its toughest mysteries. The immortal jellyfish might be ...

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The spiral galaxy ESO 137-001 looks like a dandelion caught in a breeze in this new Hubble Space Telescope image. NASA, ESA, CXC NASA, ESA, CXC Astrophysicists from the University of Waterloo have ...