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Israeli discovery: The female locust has superhero-like abilities

Tel Aviv University

Tel Aviv University YouTube Video

A new Tel Aviv University study has discovered that the female locust has superpowers. No, it is no Wonder woman. No, it is not bulletproof, nor does it fight crime like a vigilante. But the female locust can stretch itself a great deal kind of like Plastic Man.

The findings of the study reveal that the female locust’s central nervous system has elastic properties, allowing her to stretch up to two or three times her original length when laying her eggs in the ground, without causing any irreparable damage. “We are not aware of a similar ability in almost any living creature,” say the researchers. “Nerves in the human nervous system, for example, can stretch only up to 30 percent without tearing or being permanently damaged. In the future, these findings may contribute to new developments in the field of regenerative medicine, as a basis for nerve restoration and the development of synthetic tissues.”

The study was conducted by a team of Tel Aviv University researchers led by Dr. Bat-El Pinchasik of the School of Mechanical Engineering in the Fleischman Faculty of Engineering and Prof. Amir Ayali of the School of Zoology in the Wise Faculty of Life Sciences. Also participating in the study were Dr. Rakesh Das from the School of Mechanical Engineering, Dr. Moshe Guershon from the School of Zoology, and Prof. Eran Perlson and Amjd Ibraheem from the Department of Physiology and Pharmacology in the Sackler Faculty of Medicine. The research was published in iScience.

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Dr. Pinchasik explains: “When the female locust is ready to lay her eggs, she digs a hole in the ground that will offer them protection and optimal conditions for hatching. For this purpose, she is equipped with a unique digging apparatus, consisting of two pairs of digging valves which are located at the tip of the abdomen, on either side of the ovipositor (a tube-like organ used for laying eggs). As she digs, the female extends her body, until sensors located along its length signal that she has reached a suitable point for depositing her eggs. Thus, an adult female, whose body length is about four to five centimeters, may, for the purpose of laying her eggs, stretch her body to a length of 10-15 centimeters, then quickly return to her normal length, and then extend again for the next egg-laying.”

Prof. Ayali: “The superpower of the locust is almost something out of science fiction. There are only two other known examples in nature of a similar phenomenon: the tongue of the sperm whale, and a certain type of sea snail whose nervous systems are able to extend significantly due to an accordion-like mechanism they have. We sought to identify the biomechanical mechanism that gives the female locust its wonderful ability.”

In the study, the researchers removed the central nervous systems from female locusts and placed them in a liquid simulating their natural environment, under physiological conditions similar to those inside the body. Using highly sensitive measuring instruments, they measured the forces needed to extend the nervous system.



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