Birch pitch used as glue for at least 50,000 years

The oldest glue in the world, birch pitch, has been used for at least 50,000 years, by prehistoric tribes, according to a new study. Made from heat treatment of bark, this plant tar is considered the oldest known synthetic material. In fact, birch bark tar…

Monkeys outperform humans when it comes to cognitive flexibility

When it comes to exploring new options for solving a problem, Capuchin and Rhesus monkeys show more cognitive flexibility than humans, say US scientists. Explanations. Humans live in complex environments and inevitably have to rely on incomplete information to make decisions. The logical shortcuts they…

The “mechanics” of how bacteria divide explained in new study

Before a bacterium divides, there is an accumulation of mechanical stress in the cell wall, at the very place where it will separate, found Swiss scientists. Bacteria are among the first forms of life to appear on the surface of the Earth. There are thousands…

We are all mutants, but some more than others

All babies are born with genetic mutations different from those of their parents, but some have more than others, show the work of American geneticists. At birth, newborns typically have 70 new genetic mutations compared to their parents. Landmarks The human genome is made up…

The hypothetical ninth planet could be a black hole

It is possible that the planet hiding in the confines of our solar system is not one: American astrophysicists put forward the idea that it could be a very small black hole. Scientists have been observing for a few years a very particular phenomenon in…