We all learned what “regeneration” meant in high school biology classes. We also called the living things that continue to live when a limb is separated, “regenerative” creatures. There are even some animals that keep moving even when their heads are cut off! So how?
When your worms split in two to act as two separate creatures We’ve heard many myths about it. There are those of us who, as children, did some brutal experiments on the street.
If you skipped biology class, some creatures like snails and worms We will tell you how they continue to move when their limbs are severed and whether new individuals are indeed formed from the severed limbs.
Regeneration abilities evolved more than 500 million years ago.
From an evolutionary perspective, regeneration abilities were first more than 500 million years ago It is thought to have evolved even earlier than the Cambrian Period. So how does this renewal process take place?
Cells migrate towards the injured area.
If a limb has the ability to regenerate, the cells that migrated to that area immediately after amputation will coalesce. a drop called “blastema” they form. The cells of this drop begin to differentiate into muscle/cartilage and develop into new tissues.
The regeneration process continues until all the structures of the regenerated part are differentiated. cells that grow over time a complete, straight limb They take shape and eventually run out. The development time may vary from organism to living thing.
When worms divide, can both parts really move separately?
Worms have a head and a tail, although we cannot distinguish them when we look at them. The head of a worm always surrounds the animal, called the clitellum. at the end closest to the swollen strip is found.
So essentially, if a worm splits in two, no two new worms are formed. If the head of the worm is cut off from the back of the clitellum, it can survive and can regenerate the queue. But the worm’s original tail cannot form a new head. Worms can even leave their tails to escape from their predators.
Axolotls’ regenerative abilities are so advanced that they can close the wound in a matter of hours!
When a limb of cute axolotls, a type of salamander, is amputated in just a few hours they have the ability to regenerate fast enough to close the wound there. They can even regenerate their brains without any scars!
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Psycho slugs take things to the next level!
Two species of sea slugs, taking self-cutting and moving to the next level shocked the researchers. They were able to move “according to their heads” by cutting off their own heads.
It has even been discovered that they can throw anything but their heads, including their main body organs. According to the study, the necks of the animals had a “predetermined fracture plane There were grooves that looked like
They regained their former appearance in three weeks.
One-third of the animals’ heads when they gently tie a nylon thread around the snails’ necks to act wonderfully Was continuing.
Not only did his wounds heal within a day, but within seven days, the heart and other vital organs grew again in new bodies that had grown from head to toe. Within three weeks, their bodies are completely to its former state returned. In the report of the research, “Without heart and other important organs It’s unclear how the head survived.
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