Jellyfish, also known as sea jellies or simply jellies, are the medusa -phase of certain gelatinous members of the subphylum Medusozoa, which is a major part of the phylum Cnidaria. Jellyfish …

Feb 1, 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 class …

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...

Aug 30, 2024 · Find out 12 facts about the oddly charismatic, gelatinous, and ocean-dwelling jellyfish, from its literal lack of heart to the rumor that it's immortal. 1. Jellyfish Could Be Older …

Jellyfish facts for kids: learn all about these incredible invertebrates, with facts about jellyfish size, habitat characteristics, behaviour and diet.

Dec 13, 2019 · Jellyfish are 95% water, equipped with millions of stinging cells. Learn more with these jellyfish facts.

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. …

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 are gelatinous aquatic animals belonging to the subphylum Medusozoa. These free-swimming invertebrates evolved around 500 million years ago and have been roaming the …

Jellyfish are animals of the phylum Cnidaria. They are a monophyletic clade, the Medusozoa. [1] . Most of them live in the oceans, in salt water. They eat small sea animals like plankton and …