While swarm of jellies may look serene, you're best off keeping your distance. A sting from the most dangerous jellyfish on Earth can be deadly. Even when we're not looking at the most dangerous, many ...

Jellyfish have been around for over 500 million years -- yet until now, they've been thought of as simple creatures with very limited learning abilities. Jan Bielecki / SWNS Jellyfish could be much ...

Researchers at the University of Sydney say they have discovered a potential antidote for the sting of the world's most venomous sea creature: the Australian box jellyfish. The jellyfish has about 60 ...

Box jellyfish do not have brains — yet, a new study shows they are still capable of learning. Researchers over time managed to train box jellyfish to avoid obstacles in a low-light environment. That ...

You may be surprised to discover that physical strength and size isn't what sets apart the world's most dangerous animals. In fact, some of the world's smallest creatures can be the deadliest to ...

The mythical Hydra may have been able to grow one of its many heads back every time it suffered a decapitation, but there are actual creatures capable of regenerating parts of their bodies bitten off ...

Jellyfish are more advanced than once thought. A new study from the University of Copenhagen has demonstrated that Caribbean box jellyfish can learn at a much more complex level than ever imagined – ...