There’s evidence to suggest that the comb jellyfish was the first animal to appear on Earth some 700 million years ago.

The beautiful yet dangerous Portuguese-men-of-war is filled with air allowing it to float on top of the water and travel with ...

Only a handful of species can be found in all three oceans. Box jellyfish are among the oldest animals on the planet, dating ...

Yes, jellyfish do exist in lakes here in Canada. These organisms are related to saltwater jellyfish (Cnidaria), only much ...

In a strange episode in the animal kingdom, a captive marine animal merged with another of its kind to become a single ...

A crab, a vital animal in the Antarctic food chain, feeds predatory animals like seals, penguins, and birds, emitting ...

Each year on November 3rd, World Jellyfish Day is celebrated to raise awareness about jellyfish and their ecological ...

This indicated that the comb jellyfish might be capable of reverting back to a youthful, larval state under certain conditions. The researchers found that extreme stress seemed to trigger this ...

Men-of-war are siphonophores, a jellyfish-like animal, with long tentacles and painful venom, the National Oceanic and Atmospheric Administration said. Over the past week, there have been reports ...