Fever is one of the human body's key defense mechanisms against viral infections. By increasing body temperature, it slows down or even blocks the replication of many viruses, including seasonal flu. But this natural protection could prove ineffective against certain viruses from the animal world. Researchers from the Universities of Cambridge and Glasgow, in collaboration … Read more
Long considered man's most faithful companion, the dog embodies in the eyes of many a clear break with its wild ancestor. However, genetics blurs this boundary. Behind the familiar barks and wet noses, an older memory remains. Wolf DNA in modern dogs reveals a more winding history than simple domestication. A domestication more complex than … Read more
For centuries, deafness was seen as an insurmountable disadvantage, an insurmountable barrier between individuals and speech. However, in the shadow of the cloisters and then in the humanist circles of the Renaissance, a form of silent expression began to emerge. This voiceless language, forged in the constraint of religious silence and the desire to teach … Read more
Copper, silence and code. For thirty-five years, a sinuous sculpture lurking in the courtyard of CIA headquarters has defied logic and technology. Three of his messages gave way. The fourth, no. Until two men accidentally unearthed a deciphered text, already stored for years in a museum archive. But the method remains undiscovered. As the key … Read more
Sometimes the sky lights up with a sudden brightness, visible even without an instrument. In 1181, this phenomenon was observed for months by Chinese and Japanese scholars, without the exact trace being able to be found today. An ancient Arabic text, forgotten for centuries, changes the situation. This unprecedented testimony could well offer a new … Read more
One in five French people is tattooed In France, one in five people is tattooed. Indeed, a report on the tattoo market in France, published in 2023, estimates that 20% of the French population has one or more tattoos. If the first tattoos date back several millennia, notably in ancient Egypt, among the Celts or … Read more
For nearly a billion years, the Earth had the capacity to produce oxygen without ever accumulating enough to transform its atmosphere. This stagnation delayed the emergence of complex life until a sudden shift occurred in the Cambrian, around 520 million years ago. Understanding this trigger remains essential to trace the conditions that allowed the explosion … Read more
We recognize his cry among all the others. The lion's roar impresses, fascinates, and seems to speak aloud the strength of the king of animals. But this sound, which we thought we knew well, actually hides a greater complexity. With the help of artificial intelligence, researchers are now discovering that it says much more than … Read more
Indochina tigers, an endangered species In the world, there are six subspecies of tigers still living in the wild. One of them, Panthera tigris corbetti or Indochina tiger, is native to the tropical and subtropical forests of Southeast Asia. Discovered in 1968, populations once lived in countries such as China, Cambodia, Laos, Myanmar, Thailand and … Read more
The impact of contact sports on the brain It is no longer to be proven that contact sports have an impact on our brain. A study, published in September 2025 in the journal Sports Medicine, had for example demonstrated that rugby players (at a level ranging from semi-professional to professional) had almost a 25% increased … Read more
