An upside-down jellyfish drifts in a shallow lagoon, rhythmically contracting its translucent bell. By night that beat drops from roughly 36 pulses a minute to nearer 30, and the animal slips into a ...

For the project, scientists studied the polyp stage of the upside-down jellyfish, a juvenile life stage. During the polyp stage, jellyfish can live with or without symbiotic algae, setting up a ...

They don’t have a brain, and yet they’re able to survive—to thrive—generation after generation.” Flower hat jellies exemplify ...

After an unexplained delay, SeaWorld San Diego is set to open its newest attraction, Jewels of the Sea: A Jellyfish Experience, next month. Tuesday, the theme park announced in a press release that ...