11 of the Longest Living Animals That Roam Our Planet

Tuatara, 110 years and older

Orange, 149 years

A red sea urchin, around 200 years old

Bowhead whale, 211years old

Koi fish, 226 years old

Aldabra giant tortoise, 255 years old

Freshwater pearl mussels, 280 years old

Greenland shark, 400 years old

Ocean quahog, 507 years old

Antarctic sponge, 1550 years old

Turritopsis nutricula jellyfish, No lifespan

The jellyfish turritopsis nutricula is a species that has been deemed “immortal” by scientists. In the event of a crisis, the scientists observed that the jellyfish was resetting its cells and restarting its life cycle. This means that creatures 4 to 5 millimeters long can literally live forever by restoring their cells to their youngest form. Discovered for the first time in 1883, Turritopsis nutricul has a unique method to become young again. If they feel threatened or hurt, the jellyfish will rise to the surface of the warm waters and attach to something.

Once it clings to an object, it turns into a drop and cells undergo trans differentiation. The cells are essentially transformed into different types of cells and the jellyfish becomes a new one. Scientists believe that there is no natural limit to the lifespan of these creatures, which makes them theoretically immortal. (Source)