We frequently hear about “fertility crises” in Sub-Saharan Africa or “overcrowding” in South Asia and Latin America, yet ...

Global fertility rates have been falling for decades and are reaching historically low levels. While the human population now exceeds 8 billion and may top 10 billion by 2050, the momentum of growth ...

The idea that one percent of the human population are psychopaths is both intriguing and unsettling. If true, it means that for every 100 people you pass on the street, one of them might have a ...

Whenever science has to defend itself from the skeptics, it tends to fall back on medical or other technological achievements that have improved our lives—such as the personal vehicle, solar energy, ...

All species must reproduce to continue their existence. Furthermore, they must raise enough offspring to replace individuals who die. If reproduction falls below replacement level, a population ...

Forbes contributors publish independent expert analyses and insights. GrrlScientist writes about evolution, ecology, behavior and health. An entertaining and thought-provoking overview of the rise and ...

While most estimates place the current human population at around 8.2 billion, a new study suggests we might be vastly underrepresenting rural areas. By analyzing 300 rural dam projects across 35 ...

We are on the cusp of a major and unprecedented turning point in human history. For the first time in as long as humans have roamed the earth, the global human population is about to peak and begin an ...

In 1980, the economist Julian Simon took to the pages of Social Science Quarterly to place a bet against his intellectual rival, the biologist Paul Ehrlich. The Population Bomb, Ehrlich’s 1968 ...