A few months back, a team of researchers made the remarkable finding of an ancient shark residing in the North Atlantic ocean. Although they were aware of the shark’s seniority, it wasn’t until recently that they discovered the astounding estimation of the creature’s age: a staggering 512 years old.

This approximately 512-year-old shark would hold the title as the longest-living vertebrate globally.

Despite the seemingly overwhelming duration of over 500 years, Greenland sharks have a tendency to outlive the majority of other creatures due to their extremely slow growth rate.

Typically, these sharks become fully mature when they reach the age of 150, while there have been reports indicating that certain sharks have managed to survive for nearly 400 years. The recent finding of an ancient artifact dating back 512 years has unquestionably set a new record. This particular shark would have been born in 1505, which is over 512 years ago, making it even older than Shakespeare. Please rephrase this passage for me:

“Can you please rewrite this paragraph for me?”

The research findings were described in a scientific study that was published in the journal Science. Julius Nielsen, a marine biologist, and his team employed a method to gauge the levels of radiocarbon present in the eyes of Greenland sharks to uncover the potential age of these elderly creatures.

“The biologist affirmed that this creature is undeniably exceptional and deserves recognition as one of the most ancient animals globally.”

Although this technique can provide a general approximation of a shark’s age, it is not scientifically precise, particularly after a certain level of maturity has been attained. For many years, fish scientists have attempted to ascertain the lifespan and age of Greenland sharks, but their efforts have been futile. According to Steven Campana, an expert from the University of Iceland, it is quite astonishing that we had no knowledge about the lifespan of this shark, which is the dominant predator in the Arctic and at the top of the food chain. It is unclear whether this shark lives for a mere 20 years or an incredible 1,000 years.

For the majority of his academic career, Nielsen has been conducting research on Greenland sharks. The scientist previously shared a picture of rotting polar bear carcasses which the animals are known to feed on. Additionally, he points out that the species often encounter bothersome parasites that attach themselves to their eyes, resulting in the eyes typically appearing unhealthy. Paraphrase: Please reword the given text.

Due to their extensive lifespan, these sharks typically do not remain in one place indefinitely. Research was conducted on sharks from various regions across the globe, and the genetic findings unveiled remarkable similarities among almost all of them. This implies that they all likely originated from a common location and subsequently embarked on migrations to different parts of the world.

The sharks’ age determination technique is a new and improved method that enhances accuracy in the field, in contrast to previously unreliable methods.

Scientists are currently conducting additional research with the aim of revealing the reasons behind the significantly longer lifespan of the Greenland shark in comparison to other vertebrates. Their aim is to gain additional insights into the genetic makeup responsible for the shark’s remarkable longevity, as well as investigating potential correlations between this genetic trait and lifespan across various species.

The research scientist speculated that the shark’s ability to live for over 500 years could be attributed to the frigid water and its sluggish metabolism.

However, he does acknowledge immediately afterwards that additional investigation is still required and that this explanation is merely a hypothesis.