They’re among the Earth’s simplest creatures, composed of 95 percent water, with no spines, brains or hearts, but jellyfish still manage to capture our attention. Older than the dinosaurs, members of ...

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

To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Thousands of ...

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

If sharks can have a week of their own, why not jellyfish — especially the hyper-venomous box jellyfish? Most jellyfish are ...

Banfield, known as the BareFoot Photographer, took pictures of the rare purple jellyfish known as the "Mauve Stinger" as it had washed up on a beach in the Scilly Isles. “There are not many ...

Bobbing on the surface of the waves or letting themselves be carried by the current, jellyfish are among the oldest creatures in the oceans. However, they are increasingly seen as a problem ...