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- 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) The term is also frequently applied to certain other cnidarians (such as members of the class Hydrozoa) that have a medusoid (bell- or saucer-shaped) body form, as, for example, the
- Everything You Need To Know About Jellyfish - animalko. com
Jellyfish tentacles contain specialized cells called nematocysts – microscopic harpoons loaded with venom When triggered by touch, these tiny cells fire faster than a bullet! The box jellyfish packs enough poison to kill 60 adults, earning it recognition as one of the most venomous creatures on Earth 4 Immortality Secret
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