Anatomically they’re relatively simple animals; they lack not just brains, but also blood and bones, and possess only rudimentary sense organs. Despite their name, jellyfish aren’t ...

The process behind the jellyfish's remarkable transformation is called transdifferentiation and is extremely rare. Medusa cells and polyp cells are different - some cells and organs only occur in the ...

Despite not having the organs we commonly associate with intelligent life, jellyfish have to be smart and tough. Otherwise, they won't make it very far. Here's the thing, though. Fascinating ...

Jellyfish are known for drifting to and fro at the whim of ocean currents—but not all species are so passive. The millions of golden jellyfish that pack Palau’s Jellyfish Lake spend much of ...