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 mesoglea, …

Jul 14, 2026 · 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 class Cubozoa …

Apr 27, 2026 · Jellyfish, often referred to as sea jellies or simply jellies, are predominantly marine cnidarians distinguished by their gelatinous, bell-shaped medusa form. The bell is composed mainly …

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...

Dec 21, 2025 · Discover 45 Types of Jellyfish with detailed identification, habitats, and behaviors. Explore fascinating facts about these mesmerizing ocean drifters.

Jan 21, 2024 · The deadliest jellyfish in the world is the Australian Box Jellyfish (Chironex fleckeri), also known as Sea Wasp. Their tentacles are armed with nematocysts that release a potent venom, …

Oct 4, 2018 · How much do you really know about jellyfish? Given their diverse evolutionary history, jellies exhibit a fantastic range of shapes, sizes, and behaviors.

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.

Jellyfish is the intelligence platform for AI-Integrated engineering, helping R&D teams understand impact, adopt best practices, and make smarter decisions.

Jun 16, 2024 · Lacking brains, blood, or even hearts, jellyfish are pretty simple critters. They are composed of three layers: an outer layer, called the epidermis; a middle layer made of a thick, …