Jellyfish myths and misconceptions abound. Here’s how to stay safe this beach season around these gelatinous wonders.

Find out why the notorious box jellyfish deserves its loathsome reputation. The animal's toxins are among the strongest found in nature.

Freshwater jellyfish have quietly spread through lakes and reservoirs around the world, yet most people still mistake them ...

California's jellyfish season begins in late spring, peaks in the summer, and continues until early fall.

Box jellyfish get their name from their cube-shaped bell, with long tentacles trailing from each corner. When alive in the water, those tentacles can stretch several feet. "Unlike most jellyfish, they ...

Jellyfish could be much smarter than scientists previously thought, asserts a new study published in the journal Current Biology. Poisonous Caribbean box jellyfish can learn at a far more complex ...

Finding highly venomous box jellyfish that are almost invisible in water is not an easy task—but researching them is crucial ...

Palau’s Jellyfish Lake is home to a rare, endangered species of non-stinging jellyfish. The journey to get there is long but ...

Most people think the great white shark is the ocean predator they should fear the most. However, this type of jellyfish, statistically speaking, is much deadlier. Sharks are probably the animal that ...