Human-wildlife conflict has driven the decline of once-abundant species and is pushing others to the brink of extinction.

Over the past century, the world's human population has exploded from around 2 billion to 8 billion. Meanwhile, the average fertility rate has gradually declined. And if that trend continues as it has ...

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 ...

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 ...