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Biology and Medicine

A solar eclipse affects animal behavior. Credit: The Science website, via DALEE

The solar eclipse may confuse the behavior of the birds

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Unlike the 2017 eclipse that occurred in August, this eclipse occurs when the spring migration is already underway. And since most birds fly at night, a solar eclipse may affect them significantly
A herd of elephants illustration: depositphotos.com

The mystery of the prehistoric quarrying sites has been solved: the connection between man, the elephant and the source of water

Why did the ancient man return again and again, over hundreds of thousands of years, to the same quarry sites? It turns out that the secret lies in the migration routes of the elephants
A herd of Triceratops horridus walks in a swamp during the Cretaceous period. Credit Bart Boss

Spielberg was right: triceratops lived together (video)

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A decade-long study shows that five three-horned dinosaurs lived - and died - together, similar to their depiction in Steven Spielberg's Jurassic World
Photo credit: Hagai Nativ, Maurice Kahn Marine Research Station, University of Haifa

With the help of artificial intelligence: an effect of ship noise on dolphins was found for the first time

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According to the researchers, the dolphins communicate in a different way and change their vocal behavior when they encounter the noise of a ship and therefore they are definitely affected by the noise of the ships. Past studies have already shown that a change in vocal behavior can be related to stress and distress
A fitness pill. Credit: The Science website via DALEE

New 'workout pill' can cause fitness benefits without exercise

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Researchers report new compounds that appear to be able to mimic the physical drive of exercise—at least in rodent cells. This discovery could lead to a new way to treat muscular dystrophy and other medical conditions in humans, including heart failure and neurodegenerative diseases
A family of chimpanzees. lost the tail Illustration: depositphotos.com

Why did we lose the tail?

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The loss of the tail occurred about 25 million years ago, when the lineage of humans and great apes split from that of the ancient apes. The researchers identified the insertion of a specific AluY element into the intron of the TBXT gene as a key event that could explain the loss of the tail
Smoking and ultraviolet radiation end the effects of aging. Credit: The Science website via DALEE

The cause of aging: cumulative damage from factors such as radiation and smoking causes low expression of long genes

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Dutch researchers found that this process happens all the time and damages all genes, but the longer the genes, the more likely they are to be damaged because they have more sites. Especially the great damage is to nerve cells due to their inability to regenerate
The image illustrates the complex interactions described in your summary, and shows the complex choices that bacteriophages make between aggression and dormancy within their bacterial hosts, which are influenced by environmental cues and the health of the host. This represents the sophisticated mechanisms at work in bacterial and viral interactions as revealed by the study. Credit: The Science website via DALEE

How do viruses decide whether to stay friendly?

This is how the decision-making mechanism of viruses works
The new yeast was discovered for the first time by chance in a mouse intestine (fluorescence microscope image of intestinal tissue, in red - yeast cells named after Weizmann)

Yeast against yeast: Healthy competition between different fungal species in the gut may protect against life-threatening infections

Scientists of the Weizmann Institute of Science have discovered a new species of Schmer that is able to push the legs of other species that may be dangerous to health; The scientists named the new species after Dr. Chaim Weizman
Brain diseases. Illustration: depositphotos.com

Neurological morbidity is the world's number 1 cause of morbidity and disability, with over 3 billion people with brain diseases

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Neurological morbidity is the world's number 1 cause of morbidity and disability, with over 3 billion people with brain diseases * according to an article published this weekend in the Lancet. The scope of morbidity and disability has grown since 1990 by 18%
Cut in a fetal body. Courtesy of the researchers

How - and where - does a disease begin?

Researchers discovered which genes are required for each stage of cell differentiation into neural stem cells and neurons, i.e. for brain development, and which of them are involved in diseases of the nervous system
Dr. Catherine Vandorna. Photo: Nitzan Zohar, Technion spokesperson

This is how the bone marrow reacts to injuries and infections

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Dr. Kathryn Vandorna from the Faculty of Biomedical Engineering at the Technion developed a new method that allows the monitoring of the formation of immune blood cells in the bone marrow. For this purpose, she used tiny magnetic particles of iron oxide, which she followed with various imaging methods, including MRI of the living creature
Zimmergel from Israel. Photo - Yitzhak Cohen, Society for the Protection of Nature

For the first time: freshwater crabs were discovered in Modi'in

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The ecological environment was discovered as part of a nature survey conducted by the Society for the Protection of Nature for the Municipality of Modi'in Maccabim Re'ot and financed and accompanied by the Ministry of Environmental Protection
The experimental setup: microfluidic channels with a diameter of 1 micron in which E. coli bacteria were grown for several generations using a variety of fluorescent markers. These markers make it possible to follow important events in the bacterium's life cycle at the single cell level

How does a bacterium know it's time?

on the cellular division plan
Prof. Haim Sompolinsky Kris Snibbe Harvard file photo

Prof. Haim Sompolinsky won the most important international award in the field of brain research for 2024 awarded by the Danish Lundbeck Foundation

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Prof. Haim Sompolinski is the first Israeli researcher to win the prestigious award, he himself was born in Denmark whose father, Prof. David Sompolinski, was among the members of the underground who smuggled the Jews to Sweden by boat
Fairy circles in Namibia in the rainy season. Photo: Dr. Stefan Getzin

The mystery of the fairy circles

Integrating coping mechanisms of ecosystems makes it possible to deal with drought conditions
Prof. Shani Stern. Photo - Haifa University Spokesperson

A new study at the University of Haifa found for the first time a connection between Parkinson's disease and the extracellular matrix in the brain

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Extracellular matrix is ​​the part of the tissue that surrounds the cells and provides them with structural support. Beyond the structural function of the matrix, it is used for a variety of roles, such as separating tissues from one another and controlling intercellular communication, hence its role in this disease
Genetic correction of deafness problems. Illustration: depositphotos.com

Genetic engineering to eradicate deafness

two drops. That's all it took to cure Aisam Dam from homeland destruction, forever. Two drops that were instilled in his ear and gave the 11-year-old boy the ability to hear - for the first time in his life - human voices
pluripotent stem cells. Illustration: depositphotos.com

Stem cells used as a basis for innovative medicine may contain cancerous mutations

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A study by researchers at the Hebrew University found that in mature cells derived from stem cells, which are used in the field of regenerative medicine that focuses on renewing living tissues and creating organs for transplantation, cancerous mutations may appear
Right: Ella Amitai Sadovsky - cystic fibrosis. On the left, Reut Dafna - Marfan syndrome

A database on the rare genetic diseases in Israel and an artistic project called "Rare" that illustrates each of these diseases

A new site that serves as the first knowledge base of its kind in Hebrew in the field of rare genetic diseases in Israel - was launched on the occasion of the International Day for Rare Diseases, which is noted on a date that returns only once every four years - February 29. The Internet project is a joint initiative of Bar-Ilan University and the Weizmann Institute of Science.  
Two pairs of introductory divers and their guide surround the artificial reef Photo: Dr. Jenny Tiniakov

Artificial reefs protect the coral reefs in Eilat

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Researchers from Ben Gurion University followed divers in Eilat for 15 years and found that the placement of the artificial reef reduced the pressure of diving on the natural reef
cutting Courtesy of the researchers, Tel Aviv University

What improves the cutting process of plants that is considered critical in agriculture?

Researchers have discovered a way to significantly optimize the rooting process in the natural genetic cloning process of plants
A wandering wire, February 2024. Photo: Dr. Dor Edalist, University of Haifa

Jellyfish of the "wandering thread" species of unprecedented sizes have been observed in recent days along the coast of Israel

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After a summer without jellyfish, and the enormous size of the jellyfish in the winter swarms, we expect that the coming summer will be relatively abundant in jellyfish," said Dr. Dor Edelist, a marine biologist from the University of Haifa
Personalized medicine. The image was prepared with the help of DALEE artificial intelligence software and is not a scientific image

Towards a treatment for Huntington's: two small molecules may revolutionize the treatment of an incurable disease

Weizmann Institute scientists have shown in a mouse model that the drugs succeed in penetrating through the blood-brain barrier, delaying the progression of the disease and even reversing it
Cells that the researchers infected with corona (a weaker color indicates that they were destroyed due to the infection)

The infection processes of the corona virus

Researchers used RNA sequencing of individual cells to characterize the ways in which the corona virus spreads in the cells of the body, and in the general population
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