- Popular Science Jellyfish are fascinating creatures that have been around for millions of years. They are some of the most mysterious and beautiful creatures in the ocean. Here you can find news, articles, and videos about jellyfish and their amazing abilities. Learn about the different species, their behavior, and the way they are being studied and used to benefit humans.
Happy World Jellyfish Day! Jellies are an incredible group of marine animals that inhabit the open ocean, also known as the pelagic zone — the largest yet least understood habitat on earth! Jellies come in a variety of shapes, sizes, and colors — but they all lack a backbone since jellies are invertebrates! A favorite snack for several ocean predators — including sharks, sea turtles, and sunfish — jellies are important to countless marine ecosystems. This World Jellyfish Day, we’re highlighting a few of our resident jellies.
Scientists spotted a rare giant phantom jellyfish off the coast of California. It is said to be among the world's largest with a bell width of 3 feet wide and "mouth-arms" at 33 feet long.