Scientists find a frozen worm that came to life after 46 thousand years of “hibernation”

Scientists find a frozen worm that came to life after 46 thousand years of “hibernation”

Blog Article

A worm that had been frozen for 46 thousand years survived and continued to live on.

According to the scientists, the worm belongs to a genus known for its ability to enter cryptobiosis, a biological strategy when life seems to stop in cold conditions.

“In this state, no metabolic activity occurs, and the organisms can withstand harsh environmental conditions that would normally be lethal. Biologists have documented cryptobiosis in other creatures, such as tardigrades and some saltwater shrimp. Animals stop their normal bodily functions until they can return to an environment that can support growth and reproduction,” the article emphasizes.

Scientists conducted a radiocarbon analysis of the creature, which showed that the sample is tens of thousands of years old. This allows us to conclude that the worm spent most of its existence suspended under frozen sediments.

It is also known that it was found at a depth of about 37 meters. Thanks to this position, it was protected in the extreme cold and was able to “resurrect” in modern laboratories, where it resumed normal activity and even gave birth to offspring.

The researchers say that nematodes of this species usually live for only one or two months. The worm was able to survive this period with the help of cryptobiotic properties that are still being studied.

“No one thought that this process could last for millennia, 40,000 years or even longer. It is simply amazing that life can begin again after such a long time, in a state between life and death,” said Dr. Philipp Schiffer, head of the Institute's research team.