KrulUA/iStock / Getty Images Plus In their study ... which they have dubbed "cobraa"—which can reveal both how human populations split apart and how they can later merge back together.

We may earn commission if you buy from a link. Why Trust Us? While most estimates place the current human population at around 8.2 billion, a new study suggests we might be vastly ...

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 ...