Electric Cosmic Jelly Fish Orbiting Stars Poster

Jellyfish are not fish at all - they are invertebrates, which means they don't have a backbone. There are over 2,000 different species of jellyfish, and they can be found in every ocean on the planet. Jellyfish have been around for over 500 million years, making them one of the oldest creatures on Earth. Most jellyfish have a bell-shaped body and long tentacles, which they use to capture prey. Jellyfish do not have a brain or a central nervous system, but they do have a network of nerves that allows them to sense their environment. Some species of jellyfish are bioluminescent, which means they can produce their own light. Jellyfish are 95% water, which allows them to float effortlessly in the ocean. Some species of jellyfish are immortal - they can revert back to their juvenile form after reaching maturity. Jellyfish are an important part of the marine ecosystem, as they provide food for many other creatures, including sea turtles and some fish. Jellyfish blooms, which occur when there are large numbers of jellyfish in one area, can be harmful to humans, as some species have a powerful sting that can cause pain, nausea, and other symptoms.