Democratic Republic of the Congo

Forager infants get nine hours of attentive care a day from up to 15 people. What would daycare look like if we copied that?

Cholera is fast, cheap to treat, and entirely preventable — yet 3.4 billion people lack safe sanitation. Here's why the numbers don't add up.

Ninety percent of rare earth processing runs through one country. So what happens when a nation tries to trade with nobody at all?