Jellyfish Day honors one of Earth’s oldest and most fascinating creatures, glowing reminders of resilience beneath the waves.

Warm Australian waters are home to the box jellyfish (Chironex fleckeri), which is considered to be one of the most venomous animals on the planet. Box jellyfish stings lead to excruciating pain ...

is a senior reporter who has covered AI, robotics, and more for eight years at The Verge. This column is part of a series where Verge staffers post highly subjective reviews of animals. Previously, we ...

Jellyfish are the oldest animals in the ocean—they’ve been swimming on our planet for more than half a billion years. But it is only recently that scientists have begun to understand these beautiful ...

A Japanese teenager discovers a new species of jellyfish in a bay, Orchistoma integrale, extending the habitat of this genus.

Recent explorations into the world of brainless animals have unveiled surprising capabilities that challenge our traditional ...

Jellyfish are known for their ability to take over ecosystems, even though they’re less efficient swimmers and hunters than their fishy competition. But a new study shows that jellyfish may rule the ...

"Brainless does not necessarily mean neuron-less," Simon Sprecher, a professor of neurobiology at the University of Fribourg ...

Sleep is sp essential that you and I can’t live without it, and many other animal species are the same way. On the other hand, scientists have long thought that for sleep to be needed, said organism ...

Sleep is a biological process that is close to many of our hearts, but scientists haven't yet cracked all its secrets. In fact, we still don't even know why we sleep. Thus, one-third of our lives is a ...

A sea creature with long tentacles and a painful venom has been spotted on shores from Pawleys Island to Myrtle Beach. The Portuguese man o’ war is a jellyfish-like animal that often looks like a ...