Jellyfish - Wikipedia
Jellyfish, also known as sea jellies, are the medusa -phase of certain gelatinous members of the subphylum Medusozoa, which is a major part of the phylum Cnidaria. Jellyfish are mainly free-swimming marine animals, although a few are anchored to the seabed by …
Jellyfish | Characteristics, Habitat, Diet, Anatomy, & Facts | Britannica
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 (approximately 20 species). Learn more about the characteristics and natural history of …
Jellyfish - Facts and Beyond - Biology Dictionary
2020年12月3日 · 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. In fact, these animals are actually invertebrates and they are more closely related to corals, sea anemones, and sea whips than fish.
Jellyfish Facts! - National Geographic Kids
Jellyfish facts for kids: learn all about these incredible invertebrates, with facts about jellyfish size, habitat characteristics, behaviour and diet.
Jellyfish - National Geographic
2009年10月29日 · Jellyfish are ubiquitous in the Earth’s oceans. They can thrive in warm water and cold, along coastlines or out in the deep. Their bodies are about 95 percent water. And though they have no...
Jellyfish facts and photos - National Geographic Kids
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...
Jellyfish and Comb Jellies - Smithsonian Ocean
Jellyfish and comb jellies are gelatinous animals that drift through the ocean's water column around the world. They are both beautiful—the jellyfish with their pulsating bells and long, trailing tentacles, and the comb jellies with their paddling combs generating rainbow-like colors.
Jellyfish - Description, Habitat, Image, Diet, and Interesting Facts
Everything you should know about the Jellyfish. Jellyfish have a rounded bell with a mouth on the underside, short tentacles and longer stinging arms.
Jellyfish Facts: Habitat, Behavior, Diet - ThoughtCo
2019年12月13日 · Jellyfish lack a central nervous system, a circulatory system, and a respiratory system. Compared to vertebrate animals, they are extremely simple organisms, characterized mainly by their undulating bells (which contain their stomachs) and their dangling, cnidocyte-spangled tentacles.
Jellyfish: The smart stinging creatures drifting through our oceans
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 older than the dinosaurs.
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