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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
Learn about jellyfish, planktonic marine invertebrates with about 200 species, or other cnidarians with similar shapes. Find out how they feed, reproduce, and vary in size, shape, and colour.
4 de oct. de 2018 · Jellyfish 101 | Nat Geo Wild. 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...
Learn about jellyfish, the ancient invertebrates that float on ocean currents and sting their prey. Find out how they eat, where they live, and why they are sometimes dangerous to humans.
29 de oct. de 2009 · Explore the diversity and beauty of jellyfish, the ancient invertebrates that thrive in all ocean habitats. See stunning images of mosaic, moon, and other jellyfish species.
There are many types of jellyfish. The smallest jellyfish are just a few centimetres across. The largest jellyfish is the Lion's mane (Cyanea capillata), whose body can be over 3 feet (1 m) across, with much longer tentacles. Some jellyfish glow in the dark (this is called phosphorescence).
3 de dic. de 2020 · Learn about jellyfish, the oldest animals on Earth that belong to the phylum Cnidaria. Discover their anatomy, reproduction, sting, bioluminescence, and space travel.
