If you’ve ever wondered how old is the oldest organism on our planet Earth, the answer is, believe it or not, 11 thousand years.
The average human lifespan today is around 71.4 years, which is quite decent compared to most of the animals. However, compared with some animals, the human life seems like a second.
In general, most of the longest living animals are found in the sea. For example, sponges, whose lifespan ranges from species to species, live a thousand years.
But in one survey of the journal “Aging Research Reviews”, it was determined that the sponges of the species “Monorhaphis chuni” live around an outstanding 11 thousand years, and this is probably the absolute champion among the the living world of our planet Earth.
Besides the sponges, the shells also have a long lifespan and live more than 500 years, as well as the fish from Iceland – “Snapper” that live an average of 175 years.
As for mammals, the longest lifespan have the Whales from Greenland, that live up to 200 years. The key to the longevity of these animals is that they live in extremely cold environments which slow down their metabolism, therefore their aging is slown down.
Currently the oldest living animal on land is a 183-year-old giant tortoise that lives in the courtyard of the governor of the island of Saint Helena in West Africa.