A closeup shot of a glowing blue jellyfish in black water. One species stands out for its extraordinary ability: Turritopsis dohrnii, also known as the immortal jellyfish. This fingernail-sized ...

As animals, they are subject to the cycle of life and death - though one species is known to bend the rules. The hydrozoan Turritopsis dohrnii, an animal about 4.5 millimetres wide and tall (likely ...

The ocean is home to some of the most fascinating creatures on Earth, but none are as astonishing as the Turritopsis dohrnii, commonly known as the immortal jellyfish. These tiny, alien-like ...

They found that when adult Turritopsis dohrnii jellyfish were stressed, they reverted to an earlier stage in their life-cycle — rather than die. Normally, the adults (medusae) release a free ...