What Animal Did Jellyfish Evolve From?
What Animal Did Jellyfish Evolve From? Jellyfish come from one of the oldest branches on the animal family tree, the phylum Cnidaria, which includes corals and anemones. Jellyfish were probably the first muscle-powered swimmers in the open ocean. Which organism might be related to today’s jellyfish? The Man o’ War is a species of siphonophore,