You've probably heard about the amazing ability of lizards to grow new tails, or even witnessed it in real life.
While not all lizards can do it, this amazing ability has always been surrounded by many myths and misconceptions.
Let's find out more about this surprising adaptations.
Autotomy Mechanism
Lizards have a specialized area in their tails where they can easily break them off.
This break usually occurs at a designated fracture plane, which helps minimize damage and allows for a quick escape.
Initial Response
When a lizard loses its tail, the immediate response is the formation of a protective scab at the site of detachment.
This scab shields the exposed area from potential infections.
Regeneration Bump
Following the loss of the tail, a small, fleshy bump appears at the base of the tail.
This bump is the early stage of tail regeneration.
Cell Division
Lizards possess specialized cells called blastemal cells located near the base of the tail.
These cells have the remarkable ability to divide rapidly and differentiate into various cell types required for the formation of new tissues.
Growth and Differentiation
As the blastemal cells divide and proliferate, they contribute to the development of the regenerating tail.
This process involves the differentiation of cells into specific tissues, such as muscle, bone, and cartilage.
Blood Vessel Formation
The regenerating tail requires a network of blood vessels to supply nutrients and support growth.
Angiogenesis, the formation of new blood vessels, plays a crucial role in this stage.
Nerve Regeneration
To restore full functionality, the regrowing tail also needs a reestablishment of nerve connections.
Nerve cells extend into the regenerating tissues, allowing for sensory and motor functions.
Tail Elongation
Over time, the bump at the base of the tail grows, gradually elongating and forming the regenerated tail.
The new tail may not be an exact replica of the original, and variations in color or length can occur.
Functional Regenerated Tail
Once the regeneration process is complete, the lizard has a functional tail that can be used for various activities, including balance and communication.
Previously, we talked about the animals that look harmless but can hurt you.
