10+ Real Polyp Immortal Jellyfish Gif. Turritopsis dohrnii, also known as the immortal jellyfish, is a species of small, biologically immortal jellyfish found worldwide in temperate to tropic waters. Jellyfish can exist in polyp form, as medusa, or can alternate between both.

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This is the immortal jellyfish. Turritopsis dohrnii, also known as the immortal jellyfish, is a species of small, biologically immortal jellyfish found worldwide in temperate to tropic waters. Polyps are sessile creatures that as is the case with all jellyfish, they have neither a heart nor brain.

Jellyfish usually die after propagating.

Corals, sea anemones and jellyfish belong to a group of animals called cnidarians. Don't get your tentacles in a twist. There are humans that have attempted the same thing but seem unable to ever escape that sexual immature stage once. They do not have a specialized reproduction system.