Jellyfish are mainly free-swimming marine animals, although a few are anchored to the seabed by stalks rather than being motile. They are made of an umbrella-shaped main body made of …

Dec 13, 2025 · Jellyfish, any planktonic marine member of the class Scyphozoa (phylum Cnidaria), a group of invertebrate animals composed of about 200 described species, or of the …

Discover facts about gelatinous jellyfish, including what they eat, how they move and the clever stinging adaptation that has helped them flourish for millions of years.

Nov 8, 2025 · Jellyfish, ocean drifters without brains or bones, have lived for millions of years. Find out how they sting, feed, and glow underwater.

But despite their name, jellyfish aren't actually fish—they're invertebrates, or animals with no backbones. Jellyfish have tiny stinging cells in their tentacles to stun or paralyze their prey...

Jun 4, 2025 · Imagine floating through the ocean without a brain, heart, or bones, yet surviving for over 650 million years! Jellyfish are some of the most fascinating creatures in our oceans, with …

Sep 6, 2025 · Discover all TYPES OF JELLYFISH, their names, characteristics, the biggest as well as all immortal jellyfish. For more jellyfish facts and examples, read here at AnimalWised.

Jellyfish come in a huge variety of shapes and sizes. Read on to learn more about the diversity of these creatures, from siphonophores to box jellies; Scyphozoa to Staurozoa. All jellyfish are...

Oct 19, 2023 · How much do you really know about jellyfish? Given their diverse evolutionary history, jellies exhibit a fantastic range of shapes, sizes, and behaviors. Learn all about these …

Apr 25, 2025 · Jellyfish, primarily from the phylum Cnidaria (classes Scyphozoa, Cubozoa, and Hydrozoa), are gelatinous, free-swimming marine animals known for their bell-shaped bodies …