As early modern humans spread across the globe, their gut microbes genetically changed with them. Understanding the origins of gut microbes could improve understanding of their role in human health.

Dissatisfied with security guarantees from the US, America’s junior allies want greater control over their own defenses.

Researchers have created a menstrual pad that can passively help detect HPV, potentially making pap smears a thing of the past.

Columbus’s was the last of at least seven discoveries of the Americas.

International firms sharing production networks lobby together to secure favorable trade conditions.

Here’s what we can learn from our closest extinct relatives.

A Harvard Chan School study associated high moral character with lower depression risk as well as potential cardio benefits.