Discover 3 recent science news in our #PeerusWhatsNew, now on Medium.
1 New research shows that oysters perceive sound waves. This discovery suggests that the sounds of the ocean influence the behavior of oysters. It also reminds us that the noise pollution caused by human activities could impact more organisms than we thought.
French researchers have shown that oysters can “hear” sounds. This capacity, previously unknown, allows them to regulate their life cycle.
However, oysters do not hear like us because they do not have ears: they perceive the vibrations of sounds waves thanks to a sensorial organ called statocyst.
2 Organic molecules have been detected by Curiosity on Mars, but their quantities are insufficient to know if life could or could not emerge a long time ago.
After landing on Mars 5 years ago, Curiosity will arrive on its number one goal. In a few weeks, Curiosity should reach the clay strata of the Gale Crater that may have trapped these organic molecules.
It should then arrive at Vera Rubin Ridge, a place that shows a period when liquid water has remained stable for a long time. Life could have settled there and find favorable conditions for growing.
3 A French study conducted on 105,000 people tends to show that those who abuse industrial dishes increase their risk of suffering from cancer. The causal link remains to be demonstrated but the correlation is established. The risk of developing cancer would increase by 10%.
According to the researchers, ultra-processed foods “often contain higher amounts of lipids, saturated fats, added sugars and salts, as well as a lower density of fiber and vitamins”.
However, the BMJ stressed that the study offered only a first observation, which “deserves a closer and more careful exploration”.
