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 …

6 days ago · 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 …

1 day ago · Labor Day beachgoers, beware: Jellyfish sightings are on the rise along the Atlantic coast this summer. Beachgoers saw more jellyfish than usual this summer in several East …

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...

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.

Dec 13, 2019 · Jellyfish lack a central nervous system, a circulatory system, and a respiratory system. Compared to vertebrate animals, they are extremely simple organisms, characterized …

Jan 21, 2024 · We’ve listed 26 types of jellyfish species and discussed their unique characteristics and specific behaviors. 1. Moon Jellyfish. Translucent with four horseshoe-shaped gonads …

Dec 3, 2020 · Jellyfish, also known as jellies, are fascinating animals that spend their lives floating in the oceans. Unlike their name suggest, jellyfish are not really fish as they lack a backbone.

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 …

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, …