In nature, there are countless creatures with interesting features. Some of these creatures stand out for their superior hunting abilities, some for their unique defensive weapons. Some amaze with their gigantic size, others with incredible adaptability. However, those few species, the number of which does not exceed the fingers of one hand, differ from all other living creatures in a very unusual feature: immortality! Yes, there are also undead in the wild.

These immortal creatures, which amaze everyone, especially scientists, can live forever unless they are killed by a predator or there is a major change in their habitat! Scientists are trying to unravel the mystery of these immortal creatures in order to better understand the human aging process, stop or reverse this process. Here are three immortal creatures that amaze those who see them…

1. Planarian worm

It has been known since the 19th century that planarian worms have the ability to renew themselves when split in two. Although the ability to regenerate after division is an extremely rare trait, there are other types of worms that have this ability. But in 2012, scientists discovered another unusual feature of planarians.

These worms, a type of flatworm seen around the world, can create stem cells in an unlimited way, according to research done at the University of Nottingham in 2012. Moreover, the incredible properties of planarians are not limited to this.

There are two different types of planaria. Some worms reproduce sexually, others asexually. According to a 2012 study, planarians that can reproduce asexually have the ability to rejuvenate their DNA. So there is no such thing as aging in the vocabulary of these strange creatures! Here, among the immortal creatures, scientists show planarians with their unusual features.

2. Hydras

immortal beings

Some features of these creatures, which have a very interesting appearance, are as amazing as their appearance. The first scientist to discover the extraordinary properties of the hydra, which was first studied by the Dutch scientist Anthony van Leeuwenhoek, was the Swiss Abraham Trembley. Tremblay’s observations of hydras and their “regenerative superpowers” ushered in a new era in biology. So, what feature marked the beginning of this new era and amazed scientists?

Hydras can reproduce parts of their body like planar worms. Because they have stem cells that can be eaten endlessly and endlessly. In fact, the entire body of the hydra is made up of self-renewing stem cells. That is why scientists, observing individual groups of hydras for many years, could not find even the slightest signs of aging in these creatures. However, there is another feature that makes hydras immortal.

Scientists believe that hydras are immortal due to their ability to control transposon genes, also known as “jumping genes”. Transposon genes are defined as genes that can move from one part of the genome to another and cause mutations. The human body can suppress these genes in youth. As we age, it becomes more and more difficult to keep our genes under control. However, Hydras can permanently suppress these genes, thus taking their place on the list of immortal beings.

3. Turritopsis Dornius

immortal beings

Turritopsis dohrnii, or better known as the “immortal jellyfish”, is one of the most famous immortal creatures. These interesting creatures, first discovered in the Mediterranean in the 1880s, can be seen today in many parts of the world. Immortal jellyfish can live forever, feeding on plankton, fish eggs and small molluscs. But of course, what makes these creatures immortal is not only their eating habits.

Turritopsis dohrnii is a pretty amazing creature that can reset its life cycle. These creatures can revert to a previous stage of life when they are stressed. This process, called transdifferentiation, is similar to the transformation of a butterfly into a caterpillar. Scientists say that this process occurs when an adult cell turns into another adult cell. But the details of the process remain a mystery to scientists.

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