There are a few things more painful than going to the beach on a hard-earned vacation, only to get stung by a jellyfish. The ...

These are no ordinary jellyfish. Under the care of mechanical engineer Nicole Xu and her team, these creatures are being turned into something new: living ocean explorers. They’ve been fitted with ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Corals aren’t ...

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 ...

In a dark laboratory at the University of Colorado Boulder, soft pulses of light dance across the surface of a large aquarium. Inside, moon jellyfish move in slow, hypnotic patterns. Their clear, bell ...