Centipede turtles can set anti-aging standards.

Aging is inevitable for mammals like humans. It doesn’t matter how many vitamins we take, the skin burns, the bones soften and the joints stiffen over time. However, turtles and turtles live more beautifully. Despite their wrinkled skin and toothless gums, breeds like the giant tortoises of the Galپاpagos seem to be safe from the ravages of aging. As they enter their 100’s, they show signs of slowing down.

To determine what these ageless wonders are, two groups of researchers examined turtles, turtles and their ectothermic, or cold-blooded brethren, in a pair of studies published Thursday in the journal Science. ۔ Pre-aging research has largely revolved around warm-blooded animals such as mammals and birds. But ectotherams, such as fish, reptiles and amphibians dominate the record books of longevity. For example, salamanders have been called olms through underground caves for about a century. Giant tortoises can live twice as long – Earlier this year, a Seychelles tortoise named Jonathan celebrated his 190th birthday.

In one of the new research, researchers compiled a data set on 77 species of wild reptiles, including the Komodo dragon, the garter snake and the tree frog. The team used decades of monitoring data to analyze traits such as metabolism to determine their effects on age and longevity.

“We had great data sets to get aging questions in a way that had never been done before,” said Beth Renke, an evolutionary biologist at the University of Northeastern Illinois and author of the new study. “Getting to the heart of the problem of how aging develops can only be done from this broad classification perspective.”

It takes a gentle aging curve to survive that long. After most animals reach sexual maturity, most of their energy is devoted to reproduction at the expense of repairing aging tissues. This physical deterioration, or thrill, often increases the risk of death as older animals become prey to the disease. But many cold-blooded animals experience less sensation with age.

One theory is that cold-blooded animals are better equipped to handle old age clothing because they have the environment to calibrate their body temperature rather than endodermal or warm-blooded energy-depleting metabolism. Depend on But what Dr. Renke and his colleagues found was more complicated. They discovered that some ectotherms are much faster than endometrios of the same size, while others are much slower. The rate of aging of lizards and snakes was scattered, but it was significantly lower in some crocodiles, salamanders and the mysterious Tuatara. However, the only groups that were barely aged were turtles and tortoises.

Another new study digs deeper into the aging of these evergreen turtles. The researchers looked at age-related reductions in 52 species of tortoises and turtles trapped in zoos and aquariums. They found that 75% of the species, including the Aldabra giant tortoise and the pancake tortoise, exhibit less or no thrill. Some, such as Greek turtles and black swamp turtles, even showed negative thrill rates, meaning that their risk of death decreased with age. The aging rate of about 80% was slower than that of modern humans.

Turtles are considered anti-aging criteria, given their slow metabolism. Researchers have also linked their strong shell to longevity. Because herbivorous turtles and tortoises spend their lives chewing on vegetables (well, mostly), armored suing suits also protect the grated geyser.

Considering the pampered lives of captive turtles, this slow aging rate is not surprising. But unlike humans, who grow old regardless of the concept of cryogenic protection, captive turtles provide evidence that the ideal environment in zoos can reduce aging because reptiles live at ideal temperatures and Enjoy a balanced diet of fruits and vegetables.

“We compared zoo populations with wild populations and found that those in safer conditions are more likely to be unconscious,” said Rita da Silva, a population biologist at the University of Southern Denmark and author of a study of turtles. Said “For humans, our environment is getting better and better, but we’re still not able to stop the thrill.”

The risk of death in long-lived turtles and turtles has been stagnant for decades, but according to Caleb Finch, a gerontologist at the University of Southern California who studies aging in humans, they have not attained eternal youth. Like older humans, turtles and tortoises eventually lose their eyesight and heart.

“Some of them develop cataracts and are so weak that they have to be fed by hand,” said Dr. Finch, who was not involved in the new study. “They won’t live in the real world, so there’s no question that they’re getting older.”

Although these lumbering reptiles cannot survive death, they have the insight to prolong longevity and reduce age-related decline.

“If we continue to study the evolution of aging in turtles, we will at some point find a clear link between turtles and human health and aging,” said Dr. Silva.

Leave a Comment

Your email address will not be published.