population density

A new study shows that their tastes have changed, they are increasingly fond of human blood and this means an increased ability to transmit disease.

Specifically, if smart people spend a lot of time with friends, they will not feel very happy.

The world population exceeds the threshold of 7.5 billion people, according to the parameters

The world population is unevenly distributed across territories, in fact it is difficult to believe that it is true.

There are many people who like to live alone by absolute privacy and comfort, but there are many others who hate their lonely life.

US scientists have just warned of the risk of population decline due to immigration in Mexico, Central America, Africa, India and other tropical regions due to climate change.

Humans have lost 200,000 years to reach the first 1 billion population, but only 200 years later, the population has reached 7 billion.