The immortal jellyfish, Turritopsis dohrnii, is a type of jellyfish that can become immortal. But how is this possible? Jellyfish usually live in the ocean and are known for being transparent and colorful creatures. However, the immortal jellyfish has a different way of reproducing. It can transform its body into a younger state through a process called transdifferentiation. This means that the immortal jellyfish can reprogram its cells and become young again. Did you know that the immortal jellyfish is only 4-5 mm in size and has a transparent body? It can also reproduce very quickly, producing thousands of babies in just a few days. The immortal jellyfish can inspire scientists and may even help us learn how to reprogram human cells, which could be a big breakthrough for human health.