For Caribbean box jellyfish, learning is literally a no-brainer. In a new experiment, these animals learned to spot and avoid obstacles despite having no central brain, researchers report September 22 ...

They don’t have a brain or spinal cord. They float around in a way that often appears aimless. Though jellyfish lack a central nervous system, these gelatinous creatures again show that they might ...

Jellyfish demonstrate you don’t need a brain to learn from experience. Jellyfish are some of the oldest animals inhabiting Earth and have existed for more than 500 million years (appearing more than ...

Researchers at the University of Kiel, and at the University of Copenhagen have demonstrated that Caribbean box jellyfish (Tripedalia cystophora) can learn at a much more complex level than previously ...