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Our planet's environment is constantly changing, forcing millions of species to adapt to new, often harsh conditions. For example, about 5.5 million years ago, at the very end of the “golden age” for mammals (the Miocene epoch), the Mediterranean Sea almost completely dried up. This geological event, called the Messinian salinity crisis, lasted for at…

The longest nerve in the human body is the vagus nerve, also known as the nervus vagus. It earned its unusual name because its branches seem to “wander” around the body, starting in the brain and reaching organs such as the heart, lungs, stomach, and intestines. This nerve controls many important functions: from the heartbeat…

Forensic scientists are able to determine with high accuracy how long ago a person died. The process of decomposition of the body, as well as other changes, occur in it at a certain speed, knowing which, it is possible to calculate the moment of death quite accurately. But what if a person died at low…

Sleep takes up a lot of time from people – according to some estimates, by the age of 78, the time spent sleeping is about 25 years. Just imagine – an adult can spend a quarter of a century in this state during his life. But is it possible to give up sleep and spend…

In the 21st century, when almost every person on Earth has a smartphone, it may seem strange that someone still uses a pager. But this modest receiver, despite its respectful past, can still find a place in the modern world. In short, a pager is used to receive messages over the radio, and although it…