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Transgenic animals and their importance in experimental medicine

Today, thanks to gene transfer methods, animals that carry the genes of a foreign species in their genomes and exhibit these characteristics in their phenotype; They are called “transgenic organisms”. We can also see these genetically modified animals as “biofactories”. Recombinant protein production, establishment of disease models, development of high yielding breeds and xenotransplantation studies …

Only ‘1’ mutation may have given rise to the modern human brain

Studies of lab-grown “mini-brains” suggest that a mutation in the brain of our ancestors may have created the modern human mind.How did we develop such advanced cognitive abilities that led to complex language, literature, and engineering? How does the modern human brain differ from the brains of our closest evolutionary relatives, such as Neanderthals and …

Why don’t male mosquitoes bite?

Only female mosquitoes bite us. Male mosquitoes are not very adept at locating humans, they lack needles that allow them to penetrate the skin, and have even been found to refuse blood nutrients in laboratory studies. According to a new study by researchers from Rockefeller University in the USA, all mosquitoes have the nerve and …

Why are people so hairy?

Compared to other animals, it can be said that human beings are apparently hairless. However, except for the palms and soles of the feet, the human body is covered with hair from head to toe. Humans have about 5 million hair follicles, roughly equal to the number of hair follicles in chimpanzees and other primates. …

The new story of the spread of mankind to the world

Scientists seem to agree that our ancestors came out of Africa and spread around the world. Instead, when Homo sapiens left the Dark Continent is more debatable. According to the classical model, the migration of modern humans from Africa consists of a single event that began 60,000 years ago. However, a new study published in …

Animals can count too!

The ability to solve complex mathematical problems is one of the characteristics that distinguishes humans from animals. However, it can be said that some animals can also do math, albeit at a basic level, and in this context, they can count. In the early 1900s, a horse named Clever Hans managed to attract the attention …

We hybridized with Neanderthals

HEFor decades, researchers have found that modern humans in Europe Neanderthalwith They kept wondering when they had first met and their first relationship. Now, with ancient genomes relating to (genetic maps derived from the skeletons found) Two new studies address the identities of the first moderns to set foot in Europe and the last with …

Is your pet dog born in Germany?

Although the dog has accompanied humans for thousands of years, it is still controversial when and exactly where the domestication of the wolf into a dog took place. DNA analyzes of the fossils showed that wolf-like dogs lived close to humans 28,000 years ago and fed on debris from garbage. However, it is not known …

Or are we all living in a simulation?

In 2003, Oxford University philosopher Nick Bostrum suggested the possibility that we might be living in a computer simulation. Since then, the world’s leading physicists, futurists, science fiction writers, and philosophers have debated whether everyone and everything in the cosmos is part of a gigantic computer game. Let’s take a look at the views of …

First evidence of hatching dinosaurs

Information about the “cradle” of dinosaurs is still incomplete. Some fossil dinosaur eggs and embryos found by paleontologists proved that these primitive reptiles laid eggs. Even that the young hatched in communal nests and the dinosaurs brooded. But the latter was based on isotope analysis, which reflected a higher temperature in the eggs. Paleontologists working …