2002
Resultado de búsqueda
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 with umbrella-shaped bells and trailing tentacles, although a
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 in this article.
- The Editors of Encyclopaedia Britannica
Jellyfish. Jellyfish have drifted along on ocean currents for millions of years, even before dinosaurs lived on the Earth. The jellylike creatures pulse along on ocean currents and are...
29 de oct. de 2009 · Jellyfish. Jellyfish aren’t fish but invertebrates, animals that lack backbones and even brains. Yet 30,000-odd species do far more than survive—they thrive in ocean waters the world over.
4 de oct. de 2018 · 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 squishy,...
- 4 min
- 4.4M
- Nat Geo WILD
3 de dic. de 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. In fact, these animals are actually invertebrates and they are more closely related to corals, sea anemones, and sea whips than fish.
13 de dic. de 2019 · Fast Facts: Jellyfish. Scientific Name: Cnidarian; scyphozoan, cubozoan, and hydrozoan. Common Name: Jellyfish, jellies. Basic Animal Group: Invertebrate. Size: Bell diameter of two-tenths of an inch to over six and a half feet. Weight: Under an ounce to 440 pounds. Lifespan: Vary between a few hours to a few years.
