Elon Musk warns that falling birth rates could threaten civilization itself. Global population growth has already slowed ...

Archaeological discoveries in China, including fire traces from 50,000 years ago and the grid-planned capital of the Xia ...

High on a windswept Nevada mountainside in the 1960s, a young researcher set out to read the history of climate written in ...

Ancient magnetic fossils reveal that animal navigation using Earth’s magnetic field may have evolved far earlier than ...

New evidence has emerged that sheds light on the possible first people to populate the Americas. Dating of stone and ivory ...