Trying to understand the mechanisms of longevity and preservation of youth, biologists drew attention to a number of amazing creatures living on Earth.
They overturn people’s beliefs that aging and death are biologically inherent inevitability.
How were the researchers able to amaze the researchers with seemingly quite ordinary creatures?
Red sea urchins that live in shallow waters never age. They live, grow, reproduce, but do not change, remaining as young as they were. Their eternal youth can last a hundred or two hundred years. Perhaps more, but scientists began to observe them not so long ago.
Plain river or sea
Marine jellyfish can suddenly rejuvenate. For some unknown reason, the processes in the body of these creatures can be reversed. And the jellyfish returns to the state of a teenager again! Scientists joke that this wonderful property is due to the jellyfish’s lack of brains!
The longevity record holder is a sponge. These plant-like animals are found all over the world in salt and fresh water. In 1986, an individual 10,000 years old was found. And she is still not going to die. The Egyptians had not yet begun to build pyramids, and indeed most people still roamed in primitive herds, and this sponge was already an adult.
European pearl mussel shells can live for 400 years or more.
Common lobsters are potentially immortal by producing an anti-aging enzyme. They grow endlessly, so the only threat to them is the risk of being eaten by predators at the moment when they have shed their old shell and have not yet grown a new one. The largest lobster caught by humans weighed 20 kg and was approximately 200 years old.
There are also long-livers among vertebrates, which are much closer to humans on the evolutionary tree than lobsters or mollusks.
Galapagos elephant turtles survived
At the 250th year of life in India, the turtle Advaita, which was the oldest representative of the species, died.
The tortoise Jonathan, found on St. Helena in 1832, continues to live.
Greenland polar sharks live on average for 200 years, but 400-year-olds are also known
Bowhead whales live up to 200 years. In some of them, fragments of 19th century harpoons have been found. The people who attacked these sea giants have long sunk into oblivion, and the whales continue to live.
Some creatures amaze scientists with eternal youth, while others — with longevity. But there are also species with which it is generally incomprehensible — do they have natural death? Scientists tried to use different methods of destruction in relation to these creatures, but the experimental refused to die!
The giant ueta insect weighs more than a mouse. It can be frozen for any length of time under any conditions. Ueta has been proven to stop all life processes. But when thawed, the insect resurrects and continues to exist and reproduce normally. For this, scientists nicknamed ueta a zombie insect.
Of course, the record holder for endurance is small