Jellyfish are an invertebrate species of sea dwelling animal that are so named due to their gooey gelatin-like bodies. Jellyfish are not fish. They belong to the Cnidaria phylum, which includes other simple-bodied marine invertebrates such as sea anemones and corals. The jellyfish is considered simple-bodied because, like its Cnidarian cousins, it has no head, brain, heart, eyes, or ears. Thus the jellyfish is also lacking in the sensory systems that correspond to these organs.
Most jellyfish are not dangerous to humans but a few are highly toxic.


































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Most jellyfish are not dangerous to humans but a few are highly toxic.
















































































